四年级计算题大全,两位数乘三位数 200题
小学四年级---三位数乘以两位数练习题200题
34×206=264×60=
小学四年级---三位数乘以两位数练习题
405×66=701×61=
55×706=16×705=
703×56=142×45=
598×26=440×56=
546×29=264×67=
小学四年级---三位数乘以两位数练习题
474×68=709×62=
小学四年级---三位数乘以两位数练习题
418×39=724×93=
85×726=52×718=
713×59=542×95=
439×25=980×25=
31×239=591×63=
小学四年级---三位数乘以两位数练习题
354×47=747×78=
746×75=179×84=
878×23=328×36=
538×76=755×69=
88×735=16×748=
723×46=940×45=
446×25=608×27=
37×206=264×58=
小学四年级---三位数乘以两位数练习题
474×68=709×62=
42×736=16×754=
753×56=642×45=
406×26=669×23=
34×296=260×64=
42×736=16×754=
723×46=940×45=
446×25=608×27=
37×206=264×58=
小学四年级---三位数乘以两位数练习题
258×59=744×93=
35×726=59×708=
713×59=545×95=
429×26=938×25=
34×289=290×63=
小学四年级---三位数乘以两位数练习题
人教版数学四年级上册第四单元两位数乘三位数培优测试卷(含答案)
人教版数学四年级上册第四单元两位数乘三位数培优测试卷一．选择题1．（2020秋•集美区期中）一道三位数乘两位数的算式3□4×□2，其中有两个数字看不清了，下面哪个数可能是这个算式的结果？（）A．3008 B．6606 C．73482．（2020秋•济源期中）不计算，选择答案425×219＝（）A．93075 B．68000 C．46325 D．800003．（2021春•建邺区期末）下面三道算式中，与其它两道算式的积不相等的是（）A．290×80 B．8×10×29 C．30×800﹣8004．（2021春•岱岳区期末）三位数乘两位数，积最少是（）A．三位数B．四位数C．五位数二．填空题5．（2020秋•聊城期中）在横线上填上“＞“＜”或”＝”。
120×30180×20 240×50250×40206×18206×1698×5489×486．（2021春•隆回县期中）18个600是，125的40倍是。
7．（2021春•商水县期末）245×24的积是位数，最高位是位。
8．（2021春•吴江区期末）一盒水果糖有125颗，根据如图的乘法竖式判断，竖式中箭头所指的这一步是在计算盒水果糖有多少颗糖。
三．判断题9．（2020秋•天门期中）要使451×□1的积是五位数，□里最小应填2。
（判断对错）10．（2021春•隆回县期中）最大的两位数乘三位数，积一定是五位数。
（判断对错）11．（2020秋•罗湖区期中）计算167×23时，167×2表示167×20。
（判断对错）四．计算题12．（2020秋•道县期中）竖式计算。
154×23＝525×36＝209×34＝780×40＝13．（2020秋•塔河县校级期中）直接写出得数。
四年级两位数乘三位数的竖式计算题
四年级两位数乘三位数的竖式计算题示例文章篇一：《我和两位数乘三位数的那些事儿》嘿，同学们！你们知道吗？在四年级的数学世界里，有一个让我又爱又恨的家伙，那就是两位数乘三位数的竖式计算题！记得刚开始接触它的时候，我那叫一个懵啊！看着那些数字和符号，就好像一群调皮的小精灵在我眼前乱蹦，让我眼花缭乱，不知所措。
“345×23”，哎呀，这要怎么算呀？我皱着眉头，咬着铅笔头，心里直犯嘀咕：这可比之前学的简单乘法难多了，难道这是要故意为难我吗？我小心翼翼地在本子上写下竖式，先把23 的个位3 去乘345，哇，这一步还算顺利。
可接下来要用十位上的2 去乘345，我的脑子就像一团乱麻了。
“哎呀，这也太难了吧！”我忍不住抱怨起来。
这时候，同桌小明凑过来，看了看我的本子，笑着说：“哈哈，你这都不会呀！你看，先用2 乘345 得到690，别忘了要把0 写在十位上哟！”我瞪了他一眼，没好气地说：“哼，你厉害，那你别管我！”可心里却在想：好像是这么回事儿。
我又重新埋头苦算，经过一番折腾，终于算出了答案。
“哈哈，我算出来啦！”我高兴得差点跳起来。
再后来，这样的题目做得越来越多，我也慢慢找到了一些小窍门。
就像打怪升级一样，我越来越熟练，越来越有信心。
老师经常会在课堂上出一些题目让我们比赛谁做得又快又准。
每次我都紧张得手心出汗，心里默默念叨：“可别出错，可别出错！”有时候，我能快速算出正确答案，那种感觉就像是在炎热的夏天吃了一口冰淇淋，爽极了！可要是算错了，哎呀，那心情就像掉进了冰窟窿，凉透了！现在，两位数乘三位数的竖式计算题对我来说已经不再是可怕的大怪兽啦，而是我能轻松战胜的小怪物。
我明白了，只要认真、细心，再难的题目也能被我拿下！所以呀，同学们，遇到难题可别害怕，多练习，多思考，咱们一定能行！示例文章篇二：《有趣又有点难的两位数乘三位数竖式计算》嘿，同学们！你们知道吗？在我们四年级的数学世界里，有一个让人又爱又恨的家伙，那就是两位数乘三位数的竖式计算！就拿“25×312”这道题来说吧。
小学四年级三位数乘以两位数练习题200题
小学四年级---三位数乘以两96×45=109×34=
875×27=324×46=
768×66=908×40=
395×29=264×58=
小学四年级---三位数乘以两位数练习题
569×43=429×87=
96×634=18×758=
768×43=582×40=
578×35=589×86=
46×260=402×19=
小学四年级---三位数乘以两位数练习题
543×75=756×90=
88×378=806×50=
683×59=168×77=
496×26=957×21=
38×678=704×78=
小学四年级---三位数乘以两位数练习题
42×736=16×754=
723×46=940×45=
446×25=608×27=
37×206=264×58=
小学四年级---三位数乘以两位数练习题
258×59=744×93=
35×726=59×708=
713×59=545×95=
429×26=938×25=
34×289=290×63=
小学四年级---三位数乘以两位数练习题
765×93=578×90=
45×567=897×45=
353×22=745×22=
598×26=440×56=
546×29=264×67=
小学四年级---三位数乘以两位数练习题
548×56=701×61=
88×775=16×708=
753×56=142×45=
496×25=608×21=
34×246=264×50=
86×378=846×54=
693×82=368×78=
小学四年级---三位数乘以两位数练习题(200题)
小学四年级---三位数乘以两位数练习题418×39= 724×93=85×726= 52×718=713×59= 542×95=439×25= 980×25=31×239= 591×63=小学四年级---三位数乘以两位数练习题354×47= 747×78=746×75= 179×84=878×23= 328×36=767×36= 960×48=356×79= 260×56=小学四年级---三位数乘以两位数练习题568×48= 489×87=56×638= 48×758=763×47= 587×47=508×39= 5890×89=47×260= 492×39=小学四年级---三位数乘以两位数练习题563×75= 756×94=86×378= 846×54=693×82= 368×78=450×76= 957×24=38×675= 706×78=小学四年级---三位数乘以两位数练习题765×94= 570×97=45×547= 896×35=336×29= 746×92=563×26= 467×56=683×29= 260×67=小学四年级---三位数乘以两位数练习题538×76= 755×69=88×735= 16×748=723×46= 940×45=446×25= 608×27=37×206= 264×58=小学四年级---三位数乘以两位数练习题474×68= 709×62=753×56= 642×45=406×26= 669×23=34×296= 260×64=小学四年级---三位数乘以两位数练习题445×67= 771×69=58×736= 36×765=783×56= 149×45=426×27= 675×28=64×67= 260×87=小学四年级---三位数乘以两位数练习题458×69= 701×91=87×706= 19×708=783×59= 142×45=459×26= 908×21=34×249= 294×60=小学四年级---三位数乘以两位数练习题357×45= 740×28=896×45= 109×34=875×27= 324×46=768×66= 908×40=395×29= 264×58=小学四年级---三位数乘以两位数练习题569×43= 429×87=96×634= 18×758=768×43= 582×40=578×35= 589×86=46×260= 402×19=小学四年级---三位数乘以两位数练习题543×75= 756×90=88×378= 806×50=683×59= 168×77=496×26= 957×21=38×678= 704×78=小学四年级---三位数乘以两位数练习题765×93= 578×90=45×567= 897×45=353×22= 745×22=598×26= 440×56=546×29= 264×67=小学四年级---三位数乘以两位数练习题548×56= 701×61=88×775= 16×708=753×56= 142×45=496×25= 608×21=34×246= 264×50=小学四年级---三位数乘以两位数练习题479×66= 701×61=44×706= 16×790=703×46= 142×45=416×26= 604×21=34×216= 264×60=小学四年级---三位数乘以两位数练习题405×66= 701×61=55×706= 16×705=703×56= 142×45=406×26= 605×21=34×206= 264×60=小学四年级---三位数乘以两位数练习题405×66= 701×61=55×706= 16×705=703×56= 142×45=598×26= 440×56=546×29= 264×67=小学四年级---三位数乘以两位数练习题474×68= 709×62=42×736= 16×754=723×46= 940×45=446×25= 608×27=37×206= 264×58=小学四年级---三位数乘以两位数练习题258×59= 744×93=35×726= 59×708=713×59= 545×95=429×26= 938×25=34×289= 290×63=小学四年级---三位数乘以两位数练习题324×47= 747×78=746×71= 179×84=878×23= 320×36=761×36= 960×48=326×79= 264×56=。
四年级上册口算题(三位数乘两位数) 3000题
530 × 15 =103 × 60 =800 × 10 =100 × 35 =280 × 30 =990 × 10 =898 × 10 =125 × 70 =510 × 10 =154 × 50 =252 × 28 =400 × 20 =180 × 10 =111 × 10 =123 × 50 =162 × 40 =120 × 44 =40 × 80 =360 × 20 =552 × 10 =472 × 20 =140 × 31 =272 × 10 =660 × 14 =912 × 10 =150 × 10 =300 × 10 =658 × 10 =239 × 37 =505 × 18 =423 × 16 =262 × 10 =235 × 40 =490 × 10 =550 × 16 =200 × 22 =136 × 45 =80 × 20 =432 × 10 =243 × 16 =310 × 20 =379 × 20 =127 × 25 =190 × 40 =355 × 19 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:540 × 10 =160 × 30 =408 × 10 = 100 × 80 =953 × 10 =210 × 44 = 500 × 10 =102 × 40 =165 × 32 = 688 × 11 =911 × 10 =576 × 10 = 304 × 25 =160 × 50 =114 × 73 = 515 × 10 =470 × 10 =578 × 10 = 541 × 10 =170 × 28 =954 × 10 = 728 × 10 =335 × 10 =650 × 10 = 184 × 26 =630 × 15 =315 × 30 = 200 × 50 =331 × 10 =199 × 26 = 420 × 15 =100 × 20 =129 × 50 = 218 × 10 =335 × 12 =410 × 20 = 280 × 12 =600 × 10 =120 × 53 = 215 × 23 =200 × 20 =140 × 13 = 270 × 30 =580 × 10 =500 × 20 = 100 × 70 =930 × 10 =175 × 46 = 160 × 60 =330 × 24 =150 × 56 = 900 × 10 =565 × 10 =100 × 90 = 265 × 10 =720 × 10 =246 × 36 =390 × 13 =223 × 40 =199 × 26 =103 × 90 =156 × 60 =235 × 40 =290 × 14 =280 × 30 =160 × 23 =80 × 20 =424 × 15 =290 × 17 =140 × 24 =820 × 10 =250 × 20 =310 × 28 =335 × 12 =162 × 40 =336 × 10 =312 × 31 =148 × 20 =175 × 46 =10 × 50 =129 × 54 =595 × 12 =184 × 26 =359 × 25 =198 × 13 =990 × 10 =331 × 10 =953 × 10 =410 × 17 =400 × 10 =285 × 20 =100 × 84 =140 × 60 =400 × 20 =150 × 40 =155 × 60 =262 × 10 =160 × 60 =134 × 40 =140 × 31 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:631 × 10 =195 × 36 =236 × 40 = 258 × 33 =200 × 30 =392 × 25 = 913 × 10 =240 × 30 =152 × 42 = 600 × 10 =464 × 20 =106 × 10 = 120 × 44 =370 × 18 =550 × 10 = 688 × 11 =470 × 12 =440 × 10 = 435 × 20 =363 × 20 =162 × 60 = 630 × 10 =230 × 37 =200 × 24 = 142 × 30 =100 × 80 =431 × 10 = 341 × 25 =675 × 10 =265 × 30 = 390 × 10 =380 × 10 =180 × 11 = 120 × 75 =132 × 20 =190 × 40 = 246 × 30 =634 × 10 =385 × 14 = 114 × 73 =430 × 20 =300 × 10 = 295 × 10 =165 × 20 =270 × 23 = 129 × 50 =700 × 10 =224 × 28 = 149 × 33 =250 × 40 =180 × 30 = 218 × 10 =475 × 17 =225 × 10 = 158 × 60 =590 × 10 =137 × 60 =210 × 44 =410 × 20 =688 × 11 =400 × 14 =470 × 12 =224 × 28 =199 × 26 =550 × 10 =556 × 15 =120 × 56 =934 × 10 =335 × 12 =334 × 20 =400 × 10 =180 × 20 =190 × 40 =149 × 10 =330 × 10 =141 × 68 =869 × 10 =240 × 20 =552 × 10 =304 × 25 =516 × 15 =630 × 15 =953 × 10 =149 × 55 =200 × 20 =100 × 90 =192 × 50 =300 × 10 =359 × 25 =80 × 20 =898 × 10 =560 × 10 =290 × 14 =175 × 46 =431 × 10 =390 × 10 =119 × 60 =158 × 60 =110 × 70 =149 × 50 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:655 × 12 =460 × 15 =262 × 10 = 108 × 20 =90 × 20 =300 × 20 = 530 × 10 =630 × 10 =161 × 29 = 520 × 12 =755 × 10 =125 × 70 = 310 × 25 =600 × 10 =149 × 33 = 262 × 34 =230 × 40 =100 × 80 = 100 × 35 =212 × 10 =958 × 10 = 633 × 12 =181 × 20 =160 × 10 = 258 × 20 =280 × 30 =246 × 30 = 490 × 10 =184 × 26 =190 × 38 = 132 × 20 =270 × 23 =310 × 28 = 388 × 10 =103 × 90 =200 × 10 = 100 × 60 =134 × 60 =565 × 10 = 162 × 40 =235 × 40 =577 × 11 = 140 × 31 =214 × 20 =198 × 13 = 121 × 63 =160 × 60 =990 × 10 = 100 × 84 =250 × 40 =130 × 21 = 230 × 30 =660 × 14 =120 × 83 = 165 × 32 =820 × 10 =368 × 24 =135 × 30 =750 × 13 =470 × 12 =165 × 32 =158 × 60 =755 × 10 =280 × 30 =901 × 10 =800 × 10 =680 × 10 =150 × 40 =140 × 60 =300 × 20 =930 × 10 =630 × 15 =530 × 11 =500 × 15 =700 × 10 =300 × 30 =304 × 25 =965 × 10 =100 × 70 =108 × 25 =132 × 10 =240 × 11 =300 × 10 =100 × 35 =246 × 36 =160 × 23 =134 × 10 =500 × 20 =260 × 30 =236 × 20 =250 × 40 =130 × 23 =410 × 17 =180 × 10 =280 × 12 =100 × 84 =600 × 10 =900 × 10 =370 × 16 =120 × 53 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:257 × 27 =178 × 25 =390 × 13 = 295 × 22 =270 × 35 =370 × 20 = 550 × 16 =100 × 50 =740 × 10 = 110 × 70 =145 × 10 =355 × 19 = 180 × 30 =257 × 10 =700 × 11 = 328 × 22 =230 × 24 =114 × 73 = 200 × 40 =950 × 10 =224 × 28 = 125 × 70 =400 × 20 =130 × 21 = 140 × 31 =149 × 33 =331 × 10 = 210 × 44 =90 × 60 =170 × 20 = 123 × 50 =370 × 14 =120 × 74 = 380 × 26 =180 × 20 =898 × 10 = 200 × 10 =184 × 26 =103 × 90 = 217 × 10 =688 × 11 =290 × 14 = 892 × 10 =165 × 20 =262 × 10 = 120 × 22 =90 × 80 =660 × 14 = 195 × 36 =400 × 14 =129 × 50 = 180 × 11 =270 × 23 =199 × 26 = 305 × 26 =103 × 90 =110 × 52 =410 × 17 =624 × 10 =540 × 10 =290 × 14 =100 × 90 =374 × 21 =180 × 40 =195 × 15 =20 × 30 =930 × 10 =160 × 14 =335 × 20 =217 × 10 =326 × 20 =280 × 12 =100 × 70 =400 × 20 =755 × 10 =310 × 28 =262 × 10 =331 × 10 =410 × 20 =224 × 28 =112 × 65 =110 × 68 =160 × 60 =243 × 16 =917 × 10 =898 × 10 =246 × 36 =350 × 10 =475 × 17 =195 × 36 =647 × 10 =162 × 40 =470 × 12 =688 × 11 =235 × 40 =130 × 53 =104 × 82 =240 × 16 =132 × 20 =408 × 10 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:160 × 23 =120 × 55 =700 × 10 = 198 × 34 =740 × 12 =160 × 30 = 900 × 10 =140 × 31 =104 × 40 = 390 × 10 =199 × 26 =355 × 19 = 230 × 34 =100 × 20 =410 × 12 = 90 × 40 =500 × 20 =270 × 31 = 190 × 10 =338 × 25 =600 × 10 = 390 × 13 =100 × 80 =197 × 40 = 928 × 10 =631 × 10 =310 × 22 = 469 × 16 =129 × 50 =252 × 30 = 130 × 70 =184 × 26 =130 × 21 = 630 × 15 =240 × 30 =115 × 50 = 550 × 10 =466 × 10 =380 × 10 = 630 × 10 =336 × 10 =198 × 13 = 260 × 20 =431 × 10 =343 × 23 = 180 × 10 =633 × 12 =182 × 45 = 300 × 20 =300 × 10 =652 × 15 = 149 × 33 =214 × 30 =492 × 18 = 472 × 20 =468 × 20 =200 × 40 =103 × 90 =660 × 14 =140 × 51 =125 × 70 =240 × 26 =493 × 12 =140 × 65 =624 × 15 =180 × 10 =100 × 84 =180 × 11 =184 × 26 =130 × 21 =431 × 10 =210 × 44 =50 × 10 =953 × 10 =20 × 10 =320 × 26 =199 × 26 =120 × 53 =630 × 10 =470 × 12 =755 × 10 =239 × 32 =270 × 23 =631 × 10 =782 × 10 =175 × 46 =688 × 11 =160 × 23 =120 × 44 =363 × 21 =500 × 20 =200 × 20 =134 × 40 =120 × 80 =280 × 12 =200 × 27 =110 × 70 =232 × 10 =180 × 20 =130 × 20 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:800 × 10 =140 × 60 =200 × 10 = 218 × 10 =120 × 83 =359 × 25 = 892 × 10 =335 × 12 =243 × 16 = 10 × 80 =330 × 24 =140 × 27 = 246 × 30 =331 × 10 =336 × 10 = 633 × 12 =490 × 16 =245 × 14 = 162 × 40 =540 × 10 =270 × 29 = 100 × 90 =100 × 20 =217 × 10 = 460 × 20 =418 × 17 =310 × 10 = 330 × 10 =150 × 40 =114 × 75 = 280 × 20 =280 × 30 =123 × 50 = 200 × 50 =165 × 32 =160 × 20 = 198 × 13 =235 × 40 =380 × 20 = 156 × 20 =200 × 30 =410 × 20 = 110 × 40 =150 × 10 =190 × 50 = 174 × 56 =900 × 10 =132 × 20 = 472 × 20 =820 × 10 =990 × 10 = 750 × 12 =460 × 10 =235 × 30 = 129 × 50 =120 × 83 =198 × 13 =837 × 11 =200 × 10 =409 × 20 =120 × 53 =892 × 10 =410 × 17 =100 × 60 =116 × 30 =552 × 10 =310 × 28 =180 × 16 =180 × 20 =125 × 70 =550 × 16 =565 × 10 =990 × 10 =120 × 20 =160 × 60 =408 × 10 =199 × 26 =200 × 20 =720 × 12 =243 × 16 =160 × 20 =336 × 10 =325 × 30 =165 × 20 =390 × 13 =184 × 26 =105 × 80 =316 × 25 =260 × 16 =246 × 36 =100 × 22 =280 × 34 =145 × 66 =224 × 28 =110 × 18 =620 × 13 =100 × 20 =130 × 21 =280 × 30 =122 × 45 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:110 × 70 =470 × 12 =129 × 50 = 320 × 14 =390 × 10 =140 × 50 = 216 × 34 =130 × 60 =160 × 30 = 195 × 32 =140 × 20 =270 × 23 = 898 × 10 =198 × 49 =70 × 40 = 140 × 10 =900 × 10 =170 × 55 = 130 × 69 =100 × 35 =700 × 10 = 630 × 10 =885 × 10 =50 × 80 = 400 × 20 =196 × 26 =334 × 23 = 210 × 10 =335 × 12 =510 × 19 = 332 × 25 =560 × 12 =755 × 10 = 331 × 10 =130 × 41 =410 × 20 = 260 × 15 =820 × 10 =390 × 16 = 314 × 10 =100 × 84 =500 × 17 = 633 × 12 =206 × 40 =217 × 10 = 160 × 46 =600 × 10 =598 × 13 = 120 × 64 =150 × 20 =160 × 23 = 688 × 11 =660 × 14 =720 × 10 = 149 × 33 =149 × 33 =445 × 18 =330 × 24 =675 × 10 =160 × 23 =196 × 45 =660 × 14 =345 × 16 =100 × 35 =953 × 10 =150 × 50 =40 × 40 =470 × 12 =331 × 10 =100 × 30 =140 × 31 =480 × 10 =175 × 46 =400 × 20 =612 × 15 =380 × 10 =350 × 13 =313 × 30 =180 × 11 =100 × 60 =500 × 17 =299 × 30 =160 × 15 =122 × 80 =990 × 10 =198 × 34 =204 × 33 =150 × 37 =246 × 36 =150 × 38 =304 × 25 =167 × 30 =150 × 40 =330 × 25 =266 × 15 =634 × 10 =631 × 10 =472 × 20 =239 × 37 =196 × 32 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:280 × 12 =431 × 10 =198 × 13 = 335 × 12 =230 × 38 =103 × 90 = 100 × 40 =130 × 21 =115 × 78 = 195 × 36 =100 × 52 =60 × 20 = 165 × 20 =426 × 10 =217 × 10 = 839 × 10 =600 × 10 =230 × 43 = 250 × 40 =200 × 10 =120 × 34 = 200 × 20 =100 × 84 =262 × 10 = 116 × 20 =159 × 30 =290 × 20 = 123 × 50 =117 × 49 =130 × 10 = 70 × 20 =220 × 33 =630 × 15 = 536 × 10 =310 × 28 =185 × 10 = 120 × 83 =633 × 12 =280 × 30 = 770 × 10 =90 × 10 =136 × 65 = 143 × 40 =300 × 30 =410 × 17 = 145 × 55 =506 × 10 =210 × 26 = 80 × 50 =270 × 23 =110 × 39 = 380 × 18 =195 × 28 =235 × 40 = 430 × 15 =330 × 24 =863 × 10 =165 × 20 =552 × 10 =210 × 30 =160 × 60 =80 × 20 =160 × 58 =228 × 15 =475 × 17 =130 × 72 =100 × 50 =195 × 36 =170 × 30 =990 × 10 =336 × 10 =199 × 26 =930 × 10 =115 × 30 =410 × 17 =500 × 10 =633 × 12 =198 × 13 =214 × 30 =217 × 10 =180 × 11 =631 × 10 =400 × 20 =170 × 44 =162 × 40 =210 × 44 =175 × 46 =580 × 14 =129 × 50 =200 × 16 =630 × 10 =250 × 35 =318 × 30 =224 × 28 =235 × 40 =153 × 30 =820 × 10 =100 × 90 =100 × 40 =130 × 21 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:198 × 34 =160 × 23 =180 × 10 = 700 × 10 =246 × 36 =110 × 65 = 220 × 43 =630 × 15 =152 × 30 = 500 × 20 =335 × 12 =120 × 83 = 270 × 15 =487 × 20 =390 × 13 = 100 × 20 =898 × 10 =100 × 84 = 344 × 10 =182 × 45 =244 × 10 = 120 × 44 =225 × 14 =717 × 10 = 250 × 20 =800 × 10 =550 × 16 = 123 × 50 =410 × 20 =140 × 60 = 270 × 23 =250 × 40 =270 × 20 = 280 × 20 =472 × 20 =158 × 17 = 145 × 46 =550 × 10 =170 × 10 = 892 × 10 =264 × 35 =932 × 10 = 688 × 11 =796 × 10 =400 × 14 = 200 × 10 =307 × 24 =280 × 12 = 320 × 20 =154 × 49 =138 × 12 = 150 × 43 =200 × 30 =431 × 10 = 132 × 20 =550 × 10 =190 × 50 =688 × 11 =50 × 40 =410 × 11 =800 × 10 =110 × 28 =500 × 10 =110 × 10 =345 × 22 =239 × 11 =180 × 36 =125 × 70 =400 × 10 =930 × 10 =410 × 20 =246 × 30 =224 × 28 =383 × 25 =900 × 10 =470 × 12 =40 × 60 =199 × 26 =200 × 20 =120 × 44 =408 × 10 =170 × 26 =158 × 60 =135 × 56 =240 × 30 =100 × 40 =168 × 45 =180 × 10 =400 × 14 =162 × 40 =560 × 15 =898 × 10 =953 × 10 =500 × 20 =540 × 10 =312 × 25 =239 × 37 =114 × 10 =100 × 10 =175 × 46 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:136 × 70 =335 × 12 =165 × 32 = 244 × 40 =130 × 40 =100 × 20 = 582 × 15 =700 × 10 =149 × 33 = 246 × 36 =120 × 83 =471 × 16 = 30 × 30 =243 × 16 =240 × 26 = 130 × 21 =100 × 84 =600 × 10 = 100 × 35 =336 × 10 =520 × 10 = 625 × 11 =200 × 50 =670 × 10 = 331 × 10 =482 × 15 =169 × 11 = 250 × 40 =123 × 50 =298 × 10 = 552 × 10 =235 × 10 =200 × 30 = 431 × 10 =110 × 70 =272 × 30 = 380 × 10 =410 × 18 =300 × 10 = 280 × 12 =685 × 14 =550 × 16 = 263 × 33 =146 × 20 =210 × 44 = 130 × 75 =565 × 10 =125 × 50 = 100 × 70 =510 × 10 =160 × 23 = 184 × 26 =633 × 12 =321 × 30 = 165 × 20 =400 × 20 =690 × 10 =280 × 12 =470 × 10 =200 × 20 =130 × 42 =550 × 10 =230 × 42 =149 × 33 =472 × 20 =660 × 14 =540 × 10 =195 × 36 =970 × 10 =60 × 70 =159 × 54 =181 × 22 =103 × 90 =102 × 96 =243 × 16 =410 × 17 =270 × 23 =242 × 40 =552 × 10 =150 × 56 =198 × 34 =180 × 10 =500 × 20 =160 × 41 =214 × 30 =30 × 80 =747 × 13 =100 × 35 =290 × 14 =251 × 39 =630 × 15 =255 × 12 =210 × 30 =114 × 73 =410 × 20 =246 × 36 =160 × 30 =110 × 81 =633 × 12 =105 × 28 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:170 × 50 =645 × 13 =514 × 16 = 304 × 25 =90 × 80 =990 × 10 = 120 × 44 =198 × 13 =380 × 10 = 600 × 10 =390 × 10 =262 × 10 = 540 × 18 =631 × 10 =550 × 16 = 335 × 12 =123 × 50 =490 × 15 = 250 × 26 =898 × 10 =144 × 30 = 165 × 32 =314 × 20 =103 × 43 = 197 × 30 =241 × 40 =80 × 20 = 100 × 45 =162 × 40 =217 × 10 = 415 × 18 =239 × 37 =120 × 70 = 140 × 60 =688 × 11 =210 × 13 = 900 × 10 =235 × 40 =200 × 40 = 630 × 10 =100 × 20 =246 × 30 = 302 × 13 =130 × 21 =555 × 12 = 800 × 10 =210 × 22 =359 × 25 = 232 × 40 =660 × 10 =120 × 35 = 820 × 10 =132 × 20 =431 × 10 = 418 × 20 =210 × 44 =200 × 20 =306 × 20 =290 × 14 =892 × 10 =262 × 10 =500 × 20 =155 × 48 =630 × 10 =152 × 45 =550 × 10 =160 × 60 =338 × 25 =755 × 10 =350 × 10 =431 × 10 =90 × 60 =630 × 15 =275 × 34 =355 × 19 =330 × 25 =200 × 32 =186 × 30 =114 × 73 =626 × 12 =824 × 10 =164 × 60 =400 × 20 =122 × 75 =140 × 30 =359 × 25 =100 × 20 =460 × 16 =200 × 40 =100 × 84 =280 × 22 =175 × 46 =103 × 90 =250 × 40 =565 × 10 =246 × 30 =159 × 57 =235 × 40 =400 × 10 =234 × 15 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:414 × 16 =148 × 34 =700 × 10 = 199 × 26 =109 × 50 =100 × 60 = 528 × 17 =150 × 42 =227 × 30 = 333 × 30 =120 × 44 =198 × 13 = 180 × 11 =280 × 12 =552 × 10 = 408 × 10 =132 × 20 =198 × 34 = 107 × 20 =732 × 10 =290 × 31 = 212 × 35 =157 × 40 =450 × 20 = 220 × 18 =820 × 10 =540 × 10 = 170 × 28 =880 × 10 =80 × 20 = 898 × 10 =660 × 10 =239 × 37 = 110 × 70 =390 × 13 =186 × 26 = 336 × 10 =548 × 10 =243 × 16 = 430 × 22 =500 × 10 =410 × 17 = 40 × 40 =330 × 24 =218 × 10 = 900 × 10 =100 × 35 =200 × 35 = 104 × 95 =310 × 28 =140 × 31 = 322 × 30 =20 × 90 =550 × 16 = 150 × 40 =120 × 44 =219 × 30 =125 × 70 =565 × 10 =162 × 40 =239 × 37 =540 × 10 =184 × 26 =390 × 10 =108 × 92 =178 × 35 =125 × 78 =520 × 10 =140 × 31 =200 × 20 =165 × 20 =305 × 30 =262 × 10 =100 × 10 =230 × 38 =328 × 19 =108 × 10 =552 × 10 =880 × 10 =110 × 70 =180 × 20 =200 × 12 =144 × 45 =146 × 60 =220 × 21 =320 × 11 =165 × 32 =195 × 36 =180 × 10 =130 × 42 =270 × 23 =114 × 73 =200 × 40 =290 × 16 =455 × 10 =160 × 30 =100 × 80 =633 × 12 =171 × 30 =217 × 10 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:760 × 10 =100 × 84 =355 × 19 = 164 × 19 =214 × 30 =103 × 90 = 310 × 28 =224 × 30 =892 × 10 = 280 × 30 =246 × 30 =730 × 10 = 200 × 30 =430 × 11 =198 × 13 = 108 × 30 =500 × 14 =898 × 10 = 200 × 50 =120 × 83 =336 × 10 = 470 × 12 =190 × 48 =300 × 29 = 953 × 10 =149 × 33 =443 × 13 = 190 × 30 =110 × 42 =199 × 26 = 500 × 20 =300 × 10 =600 × 10 = 148 × 44 =243 × 16 =320 × 23 = 660 × 14 =642 × 13 =380 × 10 = 102 × 70 =140 × 30 =123 × 50 = 330 × 24 =304 × 25 =160 × 23 = 265 × 14 =10 × 40 =431 × 10 = 250 × 40 =250 × 11 =150 × 40 = 180 × 11 =231 × 19 =135 × 68 = 400 × 20 =120 × 60 =410 × 20 =550 × 16 =830 × 10 =224 × 28 =390 × 13 =250 × 40 =160 × 30 =174 × 25 =262 × 10 =210 × 44 =688 × 11 =40 × 70 =198 × 34 =587 × 12 =670 × 11 =255 × 30 =562 × 10 =160 × 41 =245 × 36 =500 × 14 =800 × 10 =280 × 12 =135 × 26 =103 × 90 =330 × 24 =150 × 50 =631 × 10 =40 × 20 =400 × 14 =990 × 10 =349 × 26 =100 × 90 =180 × 20 =465 × 12 =168 × 10 =125 × 70 =110 × 70 =175 × 46 =165 × 32 =158 × 60 =152 × 40 =633 × 12 =280 × 30 =335 × 12 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:210 × 20 =552 × 10 =390 × 10 = 100 × 70 =140 × 60 =150 × 40 = 142 × 70 =223 × 10 =110 × 20 = 100 × 35 =244 × 30 =272 × 20 = 200 × 30 =930 × 10 =892 × 10 = 755 × 10 =875 × 10 =270 × 13 = 200 × 50 =130 × 21 =123 × 50 = 140 × 61 =100 × 30 =408 × 10 = 184 × 26 =106 × 10 =630 × 10 = 360 × 20 =40 × 40 =220 × 44 = 186 × 13 =380 × 10 =474 × 15 = 214 × 30 =587 × 15 =199 × 26 = 218 × 10 =470 × 12 =472 × 20 = 170 × 34 =160 × 11 =711 × 10 = 120 × 64 =336 × 10 =180 × 10 = 565 × 10 =235 × 40 =540 × 10 = 550 × 10 =310 × 28 =110 × 14 = 10 × 60 =165 × 20 =374 × 20 = 130 × 16 =120 × 44 =160 × 60 =160 × 23 =160 × 10 =300 × 30 =250 × 40 =640 × 10 =930 × 10 =120 × 83 =165 × 10 =123 × 50 =990 × 10 =305 × 27 =331 × 30 =139 × 50 =300 × 10 =330 × 24 =180 × 10 =125 × 76 =495 × 16 =103 × 90 =200 × 30 =300 × 20 =200 × 40 =199 × 26 =239 × 37 =400 × 10 =355 × 19 =290 × 14 =825 × 10 =898 × 10 =246 × 30 =477 × 16 =300 × 22 =120 × 53 =113 × 45 =336 × 10 =755 × 10 =50 × 60 =118 × 60 =344 × 12 =40 × 50 =400 × 20 =200 × 50 =328 × 10 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:390 × 10 =848 × 10 =175 × 46 = 472 × 20 =60 × 70 =140 × 31 = 431 × 10 =384 × 10 =217 × 10 = 408 × 10 =214 × 30 =265 × 18 = 410 × 20 =90 × 10 =688 × 11 = 110 × 11 =114 × 73 =133 × 27 = 380 × 10 =160 × 30 =200 × 20 = 235 × 40 =198 × 34 =290 × 21 = 210 × 44 =165 × 32 =100 × 68 = 470 × 12 =101 × 46 =660 × 14 = 120 × 66 =180 × 11 =630 × 12 = 444 × 20 =450 × 10 =110 × 60 = 800 × 10 =565 × 10 =545 × 15 = 50 × 10 =552 × 10 =184 × 26 = 100 × 80 =100 × 84 =650 × 15 = 150 × 10 =190 × 10 =165 × 20 = 125 × 70 =400 × 14 =162 × 40 = 953 × 10 =147 × 46 =188 × 50 = 600 × 10 =164 × 20 =40 × 40 =200 × 10 =249 × 20 =214 × 30 =100 × 84 =350 × 24 =160 × 30 =120 × 64 =100 × 35 =227 × 22 =470 × 17 =390 × 10 =120 × 83 =184 × 26 =280 × 13 =100 × 80 =100 × 20 =450 × 17 =20 × 50 =180 × 40 =160 × 36 =100 × 50 =164 × 55 =335 × 12 =160 × 33 =165 × 20 =224 × 28 =455 × 10 =148 × 50 =180 × 11 =260 × 10 =181 × 47 =310 × 28 =120 × 53 =900 × 10 =280 × 12 =158 × 60 =115 × 14 =199 × 26 =130 × 21 =600 × 10 =158 × 55 =460 × 16 =129 × 50 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:102 × 80 =270 × 23 =410 × 20 = 390 × 13 =500 × 20 =210 × 27 = 380 × 12 =228 × 20 =175 × 46 = 140 × 60 =359 × 25 =410 × 17 = 700 × 10 =370 × 23 =130 × 37 = 239 × 10 =475 × 17 =149 × 33 = 177 × 10 =215 × 12 =360 × 26 = 240 × 24 =198 × 13 =100 × 60 = 100 × 97 =336 × 10 =990 × 10 = 239 × 37 =246 × 20 =100 × 10 = 630 × 15 =330 × 24 =123 × 50 = 246 × 36 =110 × 86 =432 × 15 = 312 × 23 =395 × 20 =165 × 32 = 578 × 10 =633 × 12 =125 × 70 = 140 × 40 =120 × 40 =20 × 60 = 150 × 40 =246 × 30 =304 × 25 = 300 × 10 =180 × 30 =162 × 40 = 172 × 30 =484 × 15 =630 × 10 = 196 × 50 =648 × 10 =362 × 15 =880 × 10 =132 × 20 =160 × 30 =304 × 25 =630 × 15 =431 × 10 =130 × 54 =100 × 80 =110 × 78 =190 × 15 =184 × 26 =410 × 20 =129 × 50 =162 × 40 =183 × 50 =647 × 10 =280 × 30 =755 × 10 =800 × 10 =935 × 10 =550 × 10 =114 × 73 =565 × 10 =105 × 48 =310 × 30 =140 × 31 =110 × 10 =330 × 24 =500 × 20 =246 × 30 =410 × 17 =175 × 35 =120 × 62 =100 × 20 =440 × 12 =390 × 13 =640 × 11 =210 × 36 =248 × 25 =218 × 10 =472 × 20 =230 × 10 =224 × 28 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:248 × 20 =120 × 60 =198 × 13 = 450 × 20 =540 × 10 =688 × 11 = 598 × 10 =336 × 10 =250 × 40 = 168 × 41 =155 × 10 =820 × 10 = 80 × 10 =10 × 30 =660 × 14 = 105 × 82 =303 × 29 =630 × 10 = 160 × 23 =134 × 50 =110 × 70 = 195 × 36 =408 × 10 =214 × 30 = 990 × 10 =900 × 10 =100 × 30 = 240 × 30 =330 × 10 =953 × 10 = 100 × 25 =355 × 19 =130 × 20 = 350 × 15 =200 × 10 =125 × 70 = 246 × 36 =400 × 14 =120 × 44 = 631 × 10 =300 × 20 =130 × 69 = 540 × 14 =380 × 17 =100 × 32 = 152 × 60 =260 × 20 =143 × 68 = 180 × 10 =370 × 18 =100 × 84 = 175 × 46 =840 × 10 =174 × 36 = 217 × 10 =400 × 10 =140 × 31 =146 × 65 =180 × 11 =330 × 24 =140 × 60 =770 × 12 =160 × 60 =300 × 28 =100 × 70 =134 × 50 =400 × 13 =200 × 10 =400 × 14 =498 × 15 =160 × 30 =100 × 20 =842 × 10 =304 × 25 =130 × 32 =228 × 40 =820 × 10 =431 × 10 =220 × 30 =454 × 20 =224 × 28 =199 × 26 =40 × 40 =688 × 11 =235 × 40 =310 × 30 =654 × 15 =258 × 20 =120 × 83 =110 × 30 =930 × 10 =110 × 34 =359 × 25 =130 × 21 =892 × 10 =120 × 44 =470 × 12 =150 × 18 =286 × 30 =267 × 13 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:695 × 10 =300 × 10 =305 × 13 = 550 × 16 =398 × 15 =246 × 36 = 550 × 10 =80 × 20 =331 × 10 = 565 × 10 =100 × 84 =540 × 10 = 408 × 10 =114 × 57 =118 × 50 = 165 × 32 =900 × 10 =357 × 20 = 630 × 10 =372 × 10 =250 × 40 = 214 × 30 =310 × 28 =127 × 70 = 100 × 80 =198 × 13 =184 × 26 = 280 × 30 =390 × 13 =443 × 20 = 380 × 10 =123 × 50 =262 × 10 = 633 × 12 =494 × 10 =173 × 40 = 701 × 12 =180 × 45 =120 × 63 = 800 × 10 =100 × 90 =190 × 32 = 771 × 10 =320 × 30 =210 × 27 = 216 × 10 =320 × 20 =103 × 90 = 200 × 40 =114 × 73 =198 × 34 = 552 × 10 =180 × 20 =132 × 20 = 770 × 10 =。
小学四年级---三位数乘以两位数练习题(200题)
小学四年级---三位数乘以两位数练习题418×39= 724×93=85×726= 52×718=713×59= 542×95= 439×25= 980×25= 31×239= 591×63=小学四年级---三位数乘以两位数练习题354×47= 747×78=746×75= 179×84=878×23= 328×36= 767×36= 960×48= 356×79= 260×56=小学四年级---三位数乘以两位数练习题568×48= 489×87=56×638= 48×758=763×47= 587×47= 508×39= 5890×89=47×260= 492×39=小学四年级---三位数乘以两位数练习题563×75= 756×94=86×378= 846×54=693×82= 368×78= 450×76= 957×24=38×675= 706×78=小学四年级---三位数乘以两位数练习题765×94= 570×97=45×547= 896×35=336×29= 746×92= 563×26= 467×56=683×29= 260×67=小学四年级---三位数乘以两位数练习题538×76= 755×69=88×735= 16×748=723×46= 940×45=446×25= 608×27= 37×206= 264×58=小学四年级---三位数乘以两位数练习题474×68= 709×62=42×736= 16×754=753×56= 642×45=406×26= 669×23= 34×296= 260×64=小学四年级---三位数乘以两位数练习题445×67= 771×69=58×736= 36×765=783×56= 149×45=426×27= 675×28= 64×67= 260×87=小学四年级---三位数乘以两位数练习题458×69= 701×91=87×706= 19×708=783×59= 142×45= 459×26= 908×21= 34×249= 294×60=小学四年级---三位数乘以两位数练习题357×45= 740×28=896×45= 109×34=875×27= 324×46= 768×66= 908×40= 395×29= 264×58=小学四年级---三位数乘以两位数练习题569×43= 429×87=96×634= 18×758=768×43= 582×40= 578×35= 589×86= 46×260= 402×19=小学四年级---三位数乘以两位数练习题543×75= 756×90=88×378= 806×50=683×59= 168×77= 496×26= 957×21= 38×678= 704×78=小学四年级---三位数乘以两位数练习题765×93= 578×90=45×567= 897×45=353×22= 745×22= 598×26= 440×56= 546×29= 264×67=小学四年级---三位数乘以两位数练习题548×56= 701×61=88×775= 16×708=753×56= 142×45= 496×25= 608×21= 34×246= 264×50=小学四年级---三位数乘以两位数练习题479×66= 701×61=44×706= 16×790=703×46= 142×45= 416×26= 604×21= 34×216= 264×60=小学四年级---三位数乘以两位数练习题405×66= 701×61=55×706= 16×705=703×56= 142×45= 406×26= 605×21= 34×206= 264×60=小学四年级---三位数乘以两位数练习题405×66= 701×61=55×706= 16×705=703×56= 142×45= 598×26= 440×56= 546×29= 264×67=小学四年级---三位数乘以两位数练习题474×68= 709×62=42×736= 16×754=723×46= 940×45= 446×25= 608×27=37×206= 264×58=小学四年级---三位数乘以两位数练习题258×59= 744×93=35×726= 59×708=713×59= 545×95= 429×26= 938×25=34×289= 290×63=小学四年级---三位数乘以两位数练习题324×47= 747×78=746×71= 179×84=878×23= 320×36= 761×36= 960×48=326×79= 264×56=。
小学四年级---三位数乘以两位数练习题(200题)
习题418×39=724×93=85×726=52×718=713×59=542×95=439×25=980×25=31×239=591×63=小学四年级---三位数乘以两位数练习题354×47= 747×78=746×75= 179×84=878×23= 328×36=767×36=960×48=356×79=260×56=小学四年级---三位数乘以两位数练习题568×48= 489×87=56×638=48×758=763×47= 587×47=508×39= 5890×89=47×260=492×39=小学四年级---三位数乘以两位数练习题563×75= 756×94=86×378=846×54=693×82=368×78=450×76=957×24=38×675=706×78=小学四年级---三位数乘以两位数练习题765×94= 570×97=45×547=896×35=336×29=746×92=563×26=467×56=683×29=260×67=小学四年级---三位数乘以两位数练习题538×76= 755×69=88×735=16×748=723×46=940×45=446×25=608×27=37×206=264×58=474×68= 709×62=42×736=16×754=753×56=642×45=406×26=669×23=34×296=260×64=小学四年级---三位数乘以两位数练习题445×67= 771×69=58×736=36×765=783×56=149×45=426×27=675×28=64×67=260×87=小学四年级---三位数乘以两位数练习题458×69= 701×91=87×706=19×708=783×59=142×45=459×26=908×21=34×249=294×60=小学四年级---三位数乘以两位数练习题357×45= 740×28=896×45= 109×34=875×27= 324×46=768×66=908×40=395×29=264×58=小学四年级---三位数乘以两位数练习题569×43= 429×87=96×634=18×758=768×43= 582×40=578×35= 589×86=46×260= 402×19=小学四年级---三位数乘以两位数练习题543×75= 756×90=88×378= 806×50=683×59=168×77=496×26=957×21=38×678= 704×78=小学四年级---三位数乘以两位数练习题765×93= 578×90=45×567= 897×45=353×22= 745×22=598×26= 440×56=546×29=264×67=小学四年级---三位数乘以两位数练习题548×56= 701×61=88×775=16×708=753×56=142×45=496×25=608×21=34×246=264×50=小学四年级---三位数乘以两位数练习题479×66= 701×61=44×706=16×790=703×46=142×45=416×26=604×21=34×216=264×60=小学四年级---三位数乘以两位数练习题405×66= 701×61=55×706=16×705=703×56=142×45=406×26=605×21=34×206=264×60=小学四年级---三位数乘以两位数练习题405×66= 701×61=55×706=16×705=703×56=142×45=598×26= 440×56=546×29=264×67=小学四年级---三位数乘以两位数练习题474×68= 709×62=42×736=16×754=723×46= 940×45=446×25=608×27=37×206=264×58=小学四年级---三位数乘以两位数练习题258×59= 744×93=35×726= 59×708=713×59= 545×95=429×26=938×25=34×289=290×63=小学四年级---三位数乘以两位数练习题324×47= 747×78=746×71= 179×84=878×23= 320×36=761×36=960×48=326×79=264×56=。
(各类齐全)四年级数学下册计算题大全(每日一练,共16份)
一、三位数乘两位数188 ×49= 380×73= 545 ×20= 800×54=二、三位数除以整十750÷50= 210÷30= 880÷20= 760÷40=三、三位数除以整十(余整十)560÷50= 520÷30= 250÷30= 310÷40=四、三位数除以整十(约等于)781 ÷20≈361 ÷60≈ 382 ÷20≈ 299 ÷10 ≈五、三位数除以整十(带余数)990 ÷60= 397 ÷10= 734÷40= 707÷80=六、两位数除以两位数74÷37= 54 ÷18= 32 ÷16= 90 ÷15=七、两位数除以两位数(带余数)98 ÷38= 87 ÷13= 54 ÷16= 62 ÷13=八、三位数除以两位数840÷56= 720÷40= 840÷20= 528 ÷24=九、三位数乘三位数646×355= 238 ×964= 639 ×187= 562 ×340=十、三位数除以两位数（带余数）646÷73= 215 ÷59= 197÷37= 220÷34=十一、四位数除以两位数4128 ÷96=7347÷31=8610 ÷41= 4240 ÷40=十二、四位数除以两位数（带余数）7781 ÷40= 9262 ÷49= 8241 ÷65= 1285 ÷29=十三、三位数乘两位数325 ×89=350×36=892 ×64= 410 ×67=一、三位数乘两位数417 ×15= 929 ×59= 142 ×27= 423 ×14= 二、三位数除以整十120 ÷10= 720÷20= 950÷50= 840÷40=三、三位数除以整十(余整十)290÷20= 690÷20= 390÷50= 460÷30=四、三位数除以整十(约等于)897 ÷60≈ 290 ÷12 ≈390÷31≈962 ÷30≈五、三位数除以整十(带余数)730÷80= 290÷20= 359 ÷20= 916÷40=六、两位数除以两位数39 ÷13= 40÷20= 76 ÷19= 85 ÷17=七、两位数除以两位数(带余数)39 ÷11= 93 ÷11= 81 ÷13= 98 ÷46=八、三位数除以两位数265 ÷53= 336÷24= 186 ÷62= 740÷37=九、三位数乘三位数547 ×974= 183×561= 458 ×959= 199 ×321=十、三位数除以两位数（带余数）953÷31=999 ÷66= 348 ÷52= 167÷58= 十一、四位数除以两位数8235 ÷45= 9889 ÷31= 6844÷58= 2610 ÷30=十二、四位数除以两位数（带余数）2121 ÷72= 3471 ÷84= 8563÷42= 1329 ÷40=十三、三位数乘两位数741 ×99= 548 ×57= 494 ×15= 777×87=一、三位数乘两位数656 ×15= 841 ×68= 446 ×47= 611 ×18= 二、三位数除以整十960÷80= 480 ÷60= 720÷20= 930÷30=三、三位数除以整十(余整十)190÷20= 530÷50= 760÷50= 530÷40=四、三位数除以整十(约等于)962 ÷60≈ 450÷49≈ 501 ÷50≈ 270÷31≈五、三位数除以整十(带余数)314÷20= 340÷30= 976÷30= 742 ÷20=六、两位数除以两位数75 ÷15= 40 ÷10= 94÷47= 69 ÷23=七、两位数除以两位数(带余数)98 ÷18= 95 ÷25= 60÷28= 96 ÷14=八、三位数除以两位数396 ÷66=348 ÷58= 806÷26= 441 ÷63=九、三位数乘三位数288 ×468= 243 ×631= 161 ×517= 579 ×989=十、三位数除以两位数（带余数）590÷36= 880÷81= 797 ÷69= 146÷36=十一、四位数除以两位数8344÷56= 1377÷27= 6864÷33= 3510÷26=十二、四位数除以两位数（带余数）5253 ÷67= 4185 ÷71= 6175 ÷56= 9508 ÷83=十三、三位数乘两位数547×85= 444×34= 884×29= 511 ×36=一、三位数乘两位数455 ×71= 906 ×64= 431 ×83= 297 ×92=二、三位数除以整十300 ÷60= 120 ÷10= 120÷20= 720 ÷60=三、三位数除以整十(余整十)980÷20= 400÷30= 520÷50= 490÷80=四、三位数除以整十(约等于)561 ÷80≈ 270÷7≈ 493÷70≈ 850÷48≈五、三位数除以整十(带余数)817÷40= 673÷30= 258 ÷40= 939 ÷60=六、两位数除以两位数98 ÷14= 28 ÷14= 60÷30= 55 ÷11=七、两位数除以两位数(带余数)46 ÷13= 84÷23= 79 ÷11= 68 ÷21=八、三位数除以两位数324÷54= 945 ÷63= 533÷41= 900÷20=九、三位数乘三位数190 ×603=500×895=430 ×687= 216 ×585=十、三位数除以两位数（带余数）432 ÷88=310 ÷91= 999 ÷38= 490÷22=十一、四位数除以两位数8372 ÷46= 1225 ÷49= 8046 ÷54= 5829 ÷87=十二、四位数除以两位数（带余数）9098 ÷39= 8902 ÷31=2239 ÷75= 9585 ÷22=十三、三位数乘两位数756×45= 436×52=232 ×96= 465 ×82=一、三位数乘两位数641 ×79= 721 ×39= 975 ×14= 328 ×34=二、三位数除以整十360÷20= 210÷30= 420÷20= 200 ÷10= 三、三位数除以整十(余整十)980 ÷60= 380 ÷60= 380÷30= 350÷20=四、三位数除以整十(约等于)421 ÷70≈ 900÷29≈ 260 ÷11 ≈ 461 ÷20≈五、三位数除以整十(带余数)824÷40= 768 ÷40= 617÷40= 990÷70=六、两位数除以两位数51 ÷17= 32 ÷16= 76 ÷19= 34 ÷17=七、两位数除以两位数(带余数)98 ÷24= 46 ÷14= 76 ÷10= 75 ÷16=八、三位数除以两位数288 ÷72=792 ÷72=986÷34= 518 ÷37=九、三位数乘三位数865 ×145= 570 ×124= 339 ×476= 553 ×135=十、三位数除以两位数（带余数）199 ÷59= 695 ÷42= 498 ÷66= 746÷27=十一、四位数除以两位数5200 ÷20= 5734 ÷61= 1247÷29= 5229 ÷21=十二、四位数除以两位数（带余数）4678 ÷54= 3014÷80= 1930 ÷47= 1453÷24=十三、三位数乘两位数535 ×58= 667×28= 695 ×63= 817×83=一、三位数乘两位数293 ×68= 164 ×99= 752 ×56= 660 ×42=二、三位数除以整十540 ÷60= 920÷40= 630÷30= 360÷40=三、三位数除以整十(余整十)930÷50= 370÷50= 220÷30= 980÷20=四、三位数除以整十(约等于)600÷33≈801 ÷40≈ 408 ÷10 ≈ 448 ÷10 ≈五、三位数除以整十(带余数)768 ÷20= 990÷80= 807÷20= 451 ÷20=六、两位数除以两位数96 ÷16= 93÷31= 90 ÷10= 92 ÷46=七、两位数除以两位数(带余数)52 ÷12= 65 ÷12= 73 ÷10= 77÷25=八、三位数除以两位数442 ÷34=780÷52=342 ÷57= 585 ÷39=九、三位数乘三位数456 ×109= 272 ×973= 368 ×974= 149 ×298=十、三位数除以两位数（带余数）850÷31=805 ÷37= 756÷29= 199 ÷28=十一、四位数除以两位数5145 ÷49=6183÷27= 2652 ÷51= 4743 ÷93=十二、四位数除以两位数（带余数）9620÷36= 3610 ÷62= 3493÷37= 2846 ÷57=十三、三位数乘两位数367×25= 976×49= 639 ×61= 676 ×93=一、三位数乘两位数585 ×55= 399 ×30= 320 ×24= 952 ×42=二、三位数除以整十550÷50= 500÷50= 330÷30= 360÷30=三、三位数除以整十(余整十)350÷40= 700 ÷60= 890÷20= 820÷80=四、三位数除以整十(约等于)840÷33≈ 700÷68≈ 949÷50≈ 650÷53 ≈五、三位数除以整十(带余数)514÷80= 990÷70= 768 ÷80= 929 ÷20=六、两位数除以两位数84 ÷14= 65 ÷13= 80 ÷16= 76 ÷19=七、两位数除以两位数(带余数)32 ÷14= 98 ÷32= 73 ÷13= 46÷20=八、三位数除以两位数885 ÷59=864÷32=225 ÷25= 782 ÷46=九、三位数乘三位数766 ×679= 388 ×255= 399 ×530= 981 ×316=十、三位数除以两位数（带余数）824÷44= 520 ÷64= 690÷38= 581 ÷77=十一、四位数除以两位数4760 ÷85=3916 ÷44= 3502 ÷34= 3024÷21=十二、四位数除以两位数（带余数）8352 ÷51= 9270 ÷24= 5803÷28= 7060 ÷50=十三、三位数乘两位数268 ×40= 100 ×47= 803 ×13= 321 ×62=一、三位数乘两位数320 ×90= 681 ×25= 516×76= 856×26=二、三位数除以整十480÷20= 260÷20= 990÷30= 480÷30=三、三位数除以整十(余整十)830÷40= 510÷70= 270÷50= 310÷30=四、三位数除以整十(约等于)431 ÷10 ≈ 660÷31≈ 100÷21≈ 520 ÷18 ≈五、三位数除以整十(带余数)679 ÷70=599 ÷60= 665 ÷40= 234÷20=六、两位数除以两位数72 ÷12= 94÷47= 64 ÷16= 77 ÷11=七、两位数除以两位数(带余数)84÷23= 73 ÷13= 55 ÷17= 98 ÷16= 八、三位数除以两位数935 ÷85= 630÷70= 780÷20= 759 ÷69=九、三位数乘三位数700×250=398 ×893=329 ×518= 344 ×952=十、三位数除以两位数（带余数）850÷32= 312 ÷44= 859 ÷47= 346÷59=十一、四位数除以两位数2145 ÷65= 4836 ÷39= 4620 ÷35= 9324÷36=十二、四位数除以两位数（带余数）3772 ÷27= 5043÷23= 7815 ÷38= 2834÷27=十三、三位数乘两位数299 ×18= 405 ×35= 705 ×40= 926 ×27=一、三位数乘两位数158 ×22= 273 ×24= 626×81= 177×54=二、三位数除以整十140÷20= 560÷20= 720÷40= 260÷20=三、三位数除以整十(余整十)610 ÷60= 730÷30=220÷30= 350÷40=四、三位数除以整十(约等于)441 ÷20≈ 290 ÷13 ≈ 720 ÷91≈ 281 ÷20≈五、三位数除以整十(带余数)771 ÷60= 469 ÷30= 453 ÷10= 781 ÷70=六、两位数除以两位数92 ÷23= 60 ÷12= 28 ÷14= 24 ÷12=七、两位数除以两位数(带余数)53 ÷17= 41 ÷10= 84 ÷13= 79 ÷33=八、三位数除以两位数456÷24= 416÷26= 343÷49= 177÷59=九、三位数乘三位数928 ×996= 332 ×152= 623×208= 274 ×629=十、三位数除以两位数（带余数）504÷41=563 ÷77=322 ÷97= 706 ÷57=十一、四位数除以两位数1320 ÷60= 9870 ÷47= 3250 ÷25= 7524 ÷99=十二、四位数除以两位数（带余数）6068 ÷31= 9415 ÷37= 8169 ÷22= 1684÷26=十三、三位数乘两位数338 ×13= 540×45= 898 ×76= 622 ×80=一、三位数乘两位数186 ×15= 586×26= 618 ×33= 586 ×16= 二、三位数除以整十600÷40= 720÷20= 720÷40= 700÷20= 三、三位数除以整十(余整十)830÷50= 460÷30= 320÷30= 970÷50=四、三位数除以整十(约等于)641 ÷40≈ 401÷50≈ 518 ÷40≈ 961 ÷80≈五、三位数除以整十(带余数)611 ÷80= 965 ÷20= 752 ÷70= 890÷70=六、两位数除以两位数36 ÷18= 75 ÷25= 72 ÷24= 48 ÷24=七、两位数除以两位数(带余数)90 ÷12= 98 ÷30= 70 ÷16= 40 ÷18=八、三位数除以两位数146÷73=308 ÷28= 648 ÷27= 930÷30=九、三位数乘三位数358 ×221= 352 ×464= 515 ×144= 717×873=十、三位数除以两位数（带余数）755 ÷76=374÷40= 999 ÷52= 305 ÷35=十一、四位数除以两位数1914 ÷66= 2184÷56= 6237÷21= 4800 ÷32=十二、四位数除以两位数（带余数）9206 ÷42= 8721 ÷37=4211 ÷80= 9652 ÷70=十三、三位数乘两位数705 ×13= 405 ×82= 872 ×42= 585 ×22=一、三位数乘两位数597 ×27= 891 ×13= 679 ×19= 420×59=二、三位数除以整十700÷70= 480÷30= 630÷30= 400÷50=三、三位数除以整十(余整十)510 ÷90= 810÷50= 620÷80= 310÷50=四、三位数除以整十(约等于)810 ÷91≈ 680÷39≈ 422 ÷20≈ 222 ÷20 ≈五、三位数除以整十(带余数)808 ÷20= 567÷20= 902 ÷70= 507÷30=六、两位数除以两位数36 ÷18= 76÷38= 80 ÷16= 69 ÷23=七、两位数除以两位数(带余数)50 ÷11= 56 ÷13= 58 ÷14= 61 ÷12=八、三位数除以两位数315 ÷35= 264÷44= 580÷29= 532 ÷76=九、三位数乘三位数699 ×746= 698 ×951= 790 ×138= 400 ×990=十、三位数除以两位数（带余数）406 ÷61= 883÷43= 678 ÷24= 367÷28=十一、四位数除以两位数6594÷21=7656 ÷44=7912 ÷86= 4345 ÷79=十二、四位数除以两位数（带余数）3177÷44=5735 ÷64= 9258 ÷24= 5611 ÷83=十三、三位数乘两位数105 ×12= 500×76= 849 ×93= 592 ×27=一、三位数乘两位数694×70=361 ×26=492 ×93= 402 ×20=二、三位数除以整十150÷30= 460÷20= 660 ÷60= 600 ÷60=三、三位数除以整十(余整十)610÷40= 730÷20= 970÷20= 680÷30= 四、三位数除以整十(约等于)482 ÷40≈ 799 ÷50≈ 320 ÷17 ≈ 950÷52≈五、三位数除以整十(带余数)215 ÷10= 308 ÷10= 447 ÷10= 411 ÷20=六、两位数除以两位数30 ÷15= 54÷27=30 ÷10= 74÷37=七、两位数除以两位数(带余数)98 ÷48= 60÷27= 84÷34= 89 ÷28=八、三位数除以两位数812 ÷28=748 ÷44= 231 ÷21= 407÷37=九、三位数乘三位数173 ×694= 557×328= 821 ×719= 672 ×416=十、三位数除以两位数（带余数）598 ÷63=837÷20=768 ÷57= 999 ÷90=十一、四位数除以两位数4623÷23= 2484÷23= 3200 ÷50= 7965 ÷27=十二、四位数除以两位数（带余数）2622 ÷85= 1951 ÷28= 9530 ÷27= 6411 ÷24=十三、三位数乘两位数655 ×96= 544×40= 559 ×13= 379 ×15=一、三位数乘两位数611 ×72=991 ×96= 472 ×86= 436×89=二、三位数除以整十920÷20= 800÷20= 860÷20= 980÷70=三、三位数除以整十(余整十)470 ÷60= 550÷30= 450÷40= 500÷30=四、三位数除以整十(约等于)328 ÷30≈141 ÷10 ≈ 762÷20≈550÷48≈五、三位数除以整十(带余数)173 ÷10= 777÷30= 442 ÷50= 254 ÷10=六、两位数除以两位数36 ÷12= 96÷32= 84÷28= 69 ÷23=七、两位数除以两位数(带余数)86 ÷14= 98 ÷16= 88 ÷38= 78 ÷36=八、三位数除以两位数990 ÷90= 161 ÷23= 340 ÷68= 299 ÷23=九、三位数乘三位数892 ×996= 233×551= 585 ×369= 323 ×722=十、三位数除以两位数（带余数）928 ÷42=345 ÷36= 569 ÷22= 520÷28=十一、四位数除以两位数4104 ÷72=8289 ÷27= 5727÷83= 3375 ÷45=十二、四位数除以两位数（带余数）9970 ÷39= 6532 ÷90= 3592 ÷35= 3153÷43=十三、三位数乘两位数246 ×24=782 ×29= 431 ×74= 414×25=一、三位数乘两位数778 ×43= 398 ×15= 264 ×21= 866 ×77=二、三位数除以整十800÷50= 700÷50= 750÷30= 500÷20=三、三位数除以整十(余整十)870÷40= 860÷40= 890÷70= 380÷40=四、三位数除以整十(约等于)960÷39≈ 302÷30≈ 561÷20≈ 800÷39≈五、三位数除以整十(带余数)861 ÷40=462 ÷30= 529 ÷20= 293÷20=六、两位数除以两位数98 ÷14= 64 ÷16= 22 ÷11= 60 ÷15=七、两位数除以两位数(带余数)55 ÷14= 74 ÷12= 98 ÷24= 70÷23=八、三位数除以两位数836÷38= 456÷76= 264÷22= 912 ÷57=九、三位数乘三位数710×728= 318 ×487= 934×339= 784×393=十、三位数除以两位数（带余数）759 ÷35= 257÷49= 766÷88= 728 ÷27=十一、四位数除以两位数4048 ÷88= 9492 ÷84= 1050 ÷21= 6507÷27=十二、四位数除以两位数（带余数）4834 ÷90= 5405 ÷98= 4818 ÷29= 4859 ÷40=十三、三位数乘两位数348 ×92= 332 ×99= 176 ×24= 394×30=一、三位数乘两位数240 ×15= 649 ×40= 532 ×43= 121 ×51=二、三位数除以整十700÷50= 640÷80= 700÷20= 360÷20=三、三位数除以整十(余整十)510÷20= 750÷20= 850÷40= 570÷70=四、三位数除以整十(约等于)300÷47≈238 ÷10 ≈ 602 ÷60≈ 450 ÷11 ≈五、三位数除以整十(带余数)747÷20=277÷50=352 ÷20= 185 ÷10=六、两位数除以两位数64÷32= 52 ÷13= 40 ÷10= 96 ÷12=七、两位数除以两位数(带余数)97 ÷15= 58 ÷14= 44 ÷13= 83÷23=八、三位数除以两位数420÷21=750 ÷75=638 ÷22=969 ÷51=九、三位数乘三位数643×348= 261 ×927= 182 ×388= 897×385=十、三位数除以两位数（带余数）548 ÷87=170÷21= 503÷45= 779 ÷46=十一、四位数除以两位数3198 ÷26=5940 ÷45= 2418 ÷26= 6757÷29=十二、四位数除以两位数（带余数）3109 ÷96= 6834÷48= 1978 ÷63= 4066 ÷61=十三、三位数乘两位数317×82= 294×80=779 ×55= 549 ×42=一、三位数乘两位数653×28= 364 ×41= 266×43= 652 ×54=二、三位数除以整十880÷20= 740÷20= 760÷20= 330÷30=三、三位数除以整十(余整十)340÷40= 280÷30= 760 ÷60= 310÷30=四、三位数除以整十(约等于)490÷8≈ 480÷41≈ 990÷91≈ 900 ÷61≈五、三位数除以整十(带余数)890÷40= 230÷20= 670÷50= 814÷50=六、两位数除以两位数48 ÷12= 46÷23= 85 ÷17= 60÷30=七、两位数除以两位数(带余数)48 ÷11= 86 ÷14= 81 ÷16= 98 ÷31=八、三位数除以两位数261 ÷29= 510÷30= 910 ÷91= 864÷54=九、三位数乘三位数964×213= 368 ×331= 814 ×695= 997×346=十、三位数除以两位数（带余数）722 ÷69=699 ÷20= 576÷27= 929 ÷63=十一、四位数除以两位数3132 ÷27= 8816÷76= 5786 ÷22= 9184÷82=十二、四位数除以两位数（带余数）2741 ÷27= 5591 ÷98= 5865 ÷88= 7622 ÷51=十三、三位数乘两位数266×48= 762 ×75= 444 ×16= 683 ×57=。
四年级数学乘法试题
四年级数学乘法试题1.两位数乘三位数的积一定是五位数．．（判断对错）【答案】×【解析】根据整数乘法的运算法则，两位数乘三位数的积可能是四位数，如450×20=9000，也可能是五位数，如500×30=15000．解答：解：两位数乘三位数的积可能是四位数，也可能是五位数．故答案为：×．点评：完成此类题目通过举例说明比较直观．2.小明在计算（25+□）×3时，错算成25+□×3，结果得130，你知道这道题的正确答案是．【答案】180【解析】由25+□×3=130，算出□是多少，再进一步代入原算式，求得正确的结果即可．解答：解：25+□×3=13025+□×3﹣25=130﹣25□×3=105□×3÷3=105÷3□=35，（25+□）×3=（25+35）×3=60×3=180；所以这道题的正确答案是180．故答案为：180．点评：整数四则混合运算的关键是搞清运算顺序，正确按运算顺序计算即可．3.水果店新进126箱苹果，每箱苹果进价25元，进这批苹果花了多少钱？【答案】进这批苹果花了3150元钱．【解析】用每箱苹果的价钱乘以苹果的箱数=苹果的总钱数即可．解答：解：25×126=3150（元）答：进这批苹果花了3150元钱．点评：掌握单价、数量、总价三者之间的关系是解决问题的关键．4.小客车限乘14人，大客车限乘46人，如果两种车各开来12辆，刚好让学校同学全部坐下，那么这个学校共有多少学生？【答案】这个学校共有720位学生．【解析】此题要求出12辆小客车和12辆大客车各乘了多少人，再求出这个学校共有多少学生．解答：解：14×12+46×12=168+552=720（人），答：这个学校共有720位学生．点评：先求出一辆小客车和一辆大客车共乘了多少人，即（14+46）人，再求这个学校共有多少学生，就是求12个（14+46）是多少用乘法，即（14+46）×12．5. 497+498+499+500+501+502+503=×=．【答案】500，（2+2+2+1），3500．【解析】根据加法交换律和结合律以及乘法分配律进行简算．解答：解：497+498+499+500+501+502+503=（497+503）+（498+502）+（499+501）+500=500×2+500×2+500×2+500=500×（2+2+2+1）=500×7=3500．点评：求连续奇数个自然数的和是多少，用最中间的数乘上个数．6. 75×8表示8个75的和是多少．（判断对错）．【答案】√．【解析】75+75+75+75+75+75+75+75就表示8个75的和是多少，可以用乘法来计算，列算式为：75×8．解答：解：根据乘法的意义，75×8表示8个75的和是多少．故答案为；√．点评：本题考查整数乘法的意义，正确理解是关键．7.（2015•大田县）三位数乘最大两位数，积一定是五位数．．（判断对错）【答案】×．【解析】根据题意，假设这个三位数是100，最大的两位数是99，然后再进一步解答即可．解答：解：根据题意，假设这个三位数是100；最大的两位数是99；100×99=9900；9900是四位数；所以，三位数乘最大两位数，积不一定是五位数．故答案为：×．点评：根据题意，用赋值法能比较容易解决此类问题．8.（2015秋•萧县月考）列竖式计算508×32430×2870×306665×77．【答案】16256；12040；21420；51205【解析】根据整数乘法的计算方法进行计算．解答：解：508×32=16256430×28=1204070×306=21420665×77=51205点评：考查了整数乘法的笔算，根据其计算方法进行计算．9.直接写出得数．12×30= 6×300= 17×50= 60×16=28×20= 40×250= 11×70= 25×4=【答案】360；1800；850；960；560；10000；770；100【解析】根据整数乘法的计算方法进行解答即可．解：12×30=360 6×300=1800 17×50=850 60×16=96028×20=560 40×250=10000 11×70=770 25×4=100【点评】此题考查了整数乘法的口算能力．10.估算．31×29≈50×51≈ 62×29≈98×28≈790×19≈403×21≈698×15≈99×109≈【答案】900；2500；1800；3000；16000；8000；14000；10000【解析】在估算中一般要根据“四舍五入”法，把数看作整十、整百或几百几十…的数来进行计算．据此解答．解：31×29≈30×30=90050×51≈50×50=250062×29≈60×30=180098×28≈100×30=3000790×19≈800×20=16000403×21≈400×20=8000698×15≈700×20=1400099×109≈100×100=10000【点评】此题考查了整数乘法的估算方法，注意把相乘的数看成最接近它的整十和整百的数计算．11.小明看一本书，已经看了115页，剩下的每天看20页，15天看完．这本书一共多少页？【答案】415页．【解析】剩下的每天看20页，15天看完，根据乘法的意义，剩下20×15页，又已看了115页，根据加法的，这本书共有20×15+115页．解：20×15+115=300+115，=415（页）．答：这本书共有415页．【点评】首先根据乘法的意义求出剩下的页数是完成本题的关键．12.小花步行的速度是每分钟65米，她从家到学校走了4分钟，走了多少米？这时距少年宫还有120米，小花家距离少年宫多少米？【答案】260；380【解析】首先根据速度×时间=路程，用小花步行的速度乘她从家到学校走的时间，求出她走了多少米；然后用它加上这时距少年宫还有的路程，求出小花家距离少年宫多少米即可．解：65×4=260（米）260+120=380（米）答：她从家到学校走了4分钟，走了260米，小花家距离少年宫380米．【点评】此题主要考查了行程问题中速度、时间和路程的关系：速度×时间=路程，路程÷时间=速度，路程÷速度=时间，要熟练掌握．13.一个因数乘3，另一个因数除以3，则积（）A．扩大到原来的3倍B．扩大到原来的9倍C．缩小到原来的D．不变【答案】D【解析】根据积不变的规律，一个因数扩大（或缩小）若干倍，另一个因数缩小（或扩大）相同的倍数（0除外），积不变；可举例进一步证明．解：如3×6=18，一个因数3乘3得9，另一个因数6除以3得2，积仍然是18不变；进而说明一个因数乘3，另一个因数除以3，积不变．故选：D．【点评】此题主要考查积不变的规律：一个因数扩大（或缩小）若干倍，另一个因数缩小（或扩大）相同的倍数（0除外），积不变．14.列竖式计算138×25207×32440×18．【答案】3450；6624；7920；【解析】根据整数乘法的竖式的计算方法解答．解：（1）138×25=3450（2）207×32=6624（3）440×18=7920【点评】本题主要考查了整数乘法的笔算，根据其计算方法解答即可．15.学校计划购买12台电视机和30台电脑，每台电视机1800元，每台电脑4500元，学校准备了200000元，够不够？【答案】够．【解析】根据“单价×数量=总价”分别算出12台电视机和30台电脑的钱数，然后相加算出一共的钱数，再和200000元比较即可．解：1800×12+4500×30=21600+135000=156600（元）200000元＞156600元，所以够．答：共准备了200000元，够．【点评】本题考查了数量、单价、总价三者之间关系的灵活应用，关键是求出12台电视机和30台电脑的钱数．16.在○填上“＞”、“＜”或“=”．28×4×5○28×（4+5）30升○3000毫升87﹣（34+26）○87﹣34﹣2656×99○56×100﹣99．【答案】＞，＞，=，＞．【解析】（1）（3）（4）先算出算式的得数，再按照整数比较大小的方法解答；（2）3000毫升=3升，30升＞3升，据此解答即可．解：（1）28×4×5＞28×（4+5）（2）30升＞3000毫升（3）87﹣（34+26）=87﹣34﹣26（4）56×99＞56×100﹣99故答案为：＞，＞，=，＞．【点评】算式的比较大小，一般先算出算式的得数，然后进一步解答；不同单位的名数的大小比较通常是先化成相同的单位名数，再根据整数或小数或分数的大小比较方法进行比较．化成什么单位要灵活掌握．17.小明从学校回家要用15分钟，他每分钟走70米，他家到学校有多少米？其中15分钟是，每分钟走70米是，求的是．A．时间B．路程C．速度D．数量．【答案】ACB【解析】小明从学校回家要用15分钟，他每分钟走70米，他家到学校有多少米？其中15分钟是时间，每分钟走70米是速度，求的是路程；然后根据速度×时间=路程，用小明每分钟走的路程乘小明从学校回家要用的时间，求出他家到学校有多少米即可．解：小明从学校回家要用15分钟，他每分钟走70米，他家到学校有多少米？其中15分钟是时间，每分钟走70米是速度，求的是路程．70×15=1050（米）答：他家到学校有1050米．故选：A、C、B．【点评】此题主要考查了行程问题中速度、时间和路程的关系：速度×时间=路程，路程÷时间=速度，路程÷速度=时间，要熟练掌握．18. 602的29倍是多少？【答案】17458．【解析】根据“求一个数的几倍是多少，可用乘法计算”，即用602乘29，列式解答即可得到答案．解：602×29=17458，答：602的29倍是17458．【点评】此题主要考查的知识点是：求一个数的几倍是多少，用乘法计算．19.“998×9”的积大约是（）A．900 B．9000 C．90000【答案】B【解析】我们把998×9中的998看作1000再与9相乘即可．解：998×9，≈1000×9，=9000；故应选：B．【点评】本题把非整百或整千的数看作与它较接近的整百或整千的数进行解答即可．20. 450×80的积的末尾只有（）个0。