分数乘除法练习题大全
分数乘除法计算题专项练习(5套)
分数乘除法计算题专项练习1姓名:二、看谁算得又对又快111471685÷÷ 35246583⨯⨯ 2535312⨯÷11555382619⨯÷ 38 ×4÷38 ×4 43853485÷⨯+ 58 ÷ 712 ÷ 710 12 ÷ 54 × 23 6÷103-103÷631×43÷(43-125) [35-(52+43)]÷431 ( 78 + 1316 )÷ 1316187×41+43×187 14×75÷14×75 (94+231)×9+231436×( 79 + 34 - 56 ) 119523121÷⎪⎭⎫ ⎝⎛+÷ [2-( 65+85)]×12721×3.2+5.6×0.5+1.2×50%三、解方程322187=x 152498=÷x 3215254=+x x 65x =308x -31=916x +5×4.4=40 (1-60%)÷x =5 21x +52x =2021四、求下面各比的比值1052:87 467:46.7 1063 :3045 :0.6 210:140 91:21五、化简下面各比65:13 123:3 1.1:114.9:0.721:6515:0.12六、列式计算1.4个118 的和除以38 ,商是多少? 2.21减去21乘32的积,差是多少?3.一个数的 56 比它的 34 多 4,求这个数。
4.12加上23的和,等于一个数的23,这个数是多少?5.比一个数多12%的数是112,这个数是多少?分数乘除法计算题专项练习2姓名:一、直接写出得数41÷ 54= 76÷6= (3+320 )×5= 117×174= 1÷7+76= 92×2.7÷60%= 9 -87÷81= =4375⨯ =7997÷=38152019⨯ =4398⨯ =23109÷ =21575÷ =3456⨯ 57×715= 34 +12 ÷ 12 = 25 ÷12 = 518 ÷123= 二、看谁算得又对又快542154+⨯ 65144150⨯- 1691583⨯-813261⨯- 613143⨯+ 11612587116⨯-⨯74764918811+÷+ 5224)81127(⨯÷- 248765⨯)+(135919138⨯÷+ 310735107÷⨯+ )+(10915731712÷- 2-1615÷75÷43 920 ÷[12 ×(25 +45 )] 36÷[(65-31)×3]543107⨯⎪⎭⎫⎝⎛+ 9753154⨯+ 465761÷⨯)-(52×(43+51)÷1019257×118+257÷311 78 ÷5+78 ÷2三、解方程x -52x =14 53+41x =2017 21x -31x = 57-32=2x 53x +52= 5 x -85x =31×45四、先化简比,再求比值25:40 0.7:9.8 56:52 4:34五、列式计算1、54的32减去51除以43的商,差是多少? 2、18的65除以41的12倍,商是多少?3、一个数减去它的13 结果等于13 ,求这个数。
分数乘除法简便运算100题有答案
分数乘除法简便运算100题有答案分数乘除法的简便运算在数学学习中是一项非常重要的技能,它能够帮助我们快速而准确地解决各种数学问题。
下面为您呈现 100 道分数乘除法简便运算题目及答案,希望对您的学习有所帮助。
一、乘法交换律1、 1/2 × 3/4 × 4/3 = 1/2 ×(3/4 × 4/3)= 1/2 × 1 = 1/22、 2/3 × 5/6 × 6/5 = 2/3 × 1 = 2/33、 3/5 × 7/8 × 8/7 = 3/5 × 1 = 3/5二、乘法结合律1、(1/3 × 2/5)× 5/6 = 1/3 ×(2/5 × 5/6)= 1/3 × 1/3 = 1/92、(2/7 × 3/8)× 8/3 = 2/7 × 1 = 2/73、(3/11 × 4/9)× 9/4 = 3/11 × 1 = 3/11三、乘法分配律1、 1/2 ×(1/3 + 1/4)= 1/2 × 7/12 = 7/242、 2/3 ×(1/4 + 1/5)= 2/3 × 9/20 = 3/103、 3/4 ×(1/5 + 1/6)= 3/4 × 11/30 = 11/40四、除法的性质1、 1/2 ÷ 3/4 ÷ 4/3 = 1/2 ÷(3/4 × 4/3)= 1/2 ÷ 1 = 1/22、 2/3 ÷ 5/6 ÷ 6/5 = 2/3 ÷ 1 = 2/33、 3/5 ÷ 7/8 ÷ 8/7 = 3/5 ÷ 1 = 3/5五、拆分法1、 1/2 × 15 = 1/2 ×(16 1)= 1/2 × 16 1/2 × 1 = 8 1/2 = 7 又1/22、 2/3 × 21 = 2/3 ×(20 + 1)= 2/3 × 20 + 2/3 × 1 = 14 + 2/3 = 14 又 2/33、 3/4 × 36 = 3/4 ×(32 + 4)= 3/4 × 32 + 3/4 × 4 = 24 + 3 =27六、约分法1、 12/25 × 5/18 = 2/152、 18/35 × 7/27 = 2/153、 24/39 × 13/32 = 1/4七、转化法1、 1/4 ÷ 2/5 = 1/4 × 5/2 = 5/82、 2/7 ÷ 4/9 = 2/7 × 9/4 = 9/143、 3/8 ÷ 6/11 = 3/8 × 11/6 = 11/16八、综合运用1、 1/2 × 3/4 + 1/2 × 1/4 = 1/2 ×(3/4 + 1/4)= 1/2 × 1 = 1/22、 2/3 × 5/6 2/3 × 1/6 = 2/3 ×(5/6 1/6)= 2/3 × 2/3 = 4/93、 3/4 ÷ 5/8 × 4/5 = 3/4 × 8/5 × 4/5 = 24/25接下来是剩下的题目及答案:4、 4/5 × 5/6 × 6/7 = 4/75、 5/7 × 7/8 × 8/9 = 5/96、 6/11 × 11/12 × 12/13 = 6/137、 1/3 ×(1/2 1/5)= 1/108、 2/5 ×(1/3 + 1/4)= 7/309、 3/7 ×(1/4 1/5)= 3/14010、 1/2 ÷ 4/5 ÷ 5/6 = 3/411、 2/3 ÷ 5/6 ÷ 6/7 = 14/1512、 3/4 ÷ 7/8 ÷ 8/9 = 27/2813、 1/2 × 20 = 1014、 2/3 × 27 = 1815、 3/5 × 40 = 2416、 15/28 × 7/9 = 5/1217、 21/32 × 8/27 = 7/3618、 27/44 × 11/18 = 3/819、 1/3 ÷ 3/5 = 5/920、 2/5 ÷ 6/7 = 7/1521、 3/7 ÷ 9/11 = 11/2122、 1/2 × 4/5 1/2 × 1/5 = 3/1023、 2/3 × 6/7 + 2/3 × 1/7 = 2/324、 3/4 × 8/9 3/4 × 1/9 = 2/325、 7/8 × 8/9 × 9/10 = 7/1026、 8/11 × 11/12 × 12/14 = 4/727、 9/13 × 13/15 × 15/17 = 9/1728、 1/4 ×(1/3 + 1/6)= 1/829、 2/7 ×(1/4 + 1/5)= 9/7030、 3/8 ×(1/5 1/6)= 1/8031、 1/2 ÷ 5/6 ÷ 6/7 = 7/1032、 2/3 ÷ 6/7 ÷ 7/8 = 8/933、 3/4 ÷ 7/8 ÷ 8/9 = 27/2834、 1/2 × 30 = 1535、 2/3 × 36 = 2436、 3/5 × 50 = 3037、 18/35 × 7/20 = 9/10038、 24/39 × 13/36 = 2/939、 30/47 × 47/60 = 1/240、 1/4 ÷ 4/7 = 7/1641、 2/7 ÷ 7/9 = 18/4942、 3/8 ÷ 8/11 = 33/6443、 1/2 × 5/6 + 1/2 × 1/6 = 1/244、 2/3 × 7/8 2/3 × 1/8 = 1/245、 3/4 × 9/10 + 3/4 × 1/10 = 3/446、 10/11 × 11/12 × 12/13 = 10/1347、 11/14 × 14/15 × 15/16 = 11/1648、 12/17 × 17/18 × 18/19 = 12/1949、 1/5 ×(1/4 + 1/5)= 9/10051、 3/8 ×(1/6 1/7)= 3/33652、 1/2 ÷ 6/7 ÷ 7/8 = 4/353、 2/3 ÷ 7/8 ÷ 8/9 = 24/2154、 3/4 ÷ 8/9 ÷ 9/10 = 15/855、 1/2 × 40 = 2056、 2/3 × 45 = 3057、 3/5 × 60 = 3658、 21/32 × 8/24 = 7/3259、 27/40 × 10/27 = 1/460、 33/48 × 16/33 = 1/361、 1/5 ÷ 5/8 = 8/2562、 2/7 ÷ 7/10 = 20/4963、 3/8 ÷ 8/13 = 39/6464、 1/2 × 6/7 1/2 × 1/7 = 5/1465、 2/3 × 8/9 + 2/3 × 1/9 = 2/366、 3/4 × 10/11 3/4 × 1/11 = 3/468、 14/17 × 17/18 × 18/19 = 14/1969、 15/20 × 20/21 × 21/22 = 15/2270、 1/6 ×(1/5 + 1/6)= 11/18071、 2/8 ×(1/6 + 1/7)= 26/33672、 3/9 ×(1/7 1/8)= 1/21673、 1/2 ÷ 7/8 ÷ 8/9 = 9/774、 2/3 ÷ 8/9 ÷ 9/10 = 5/375、 3/4 ÷ 9/10 ÷ 10/11 = 11/476、 1/2 × 50 = 2577、 2/3 × 55 = 110/378、 3/5 × 70 = 4279、 24/35 × 7/28 = 3/3580、 30/41 × 11/30 = 11/4181、 36/49 × 7/36 = 1/782、 1/6 ÷ 6/10 = 5/1883、 2/8 ÷ 8/12 = 3/884、 3/9 ÷ 9/14 = 14/2785、 1/2 × 7/8 + 1/2 × 1/8 = 1/286、 2/3 × 9/10 2/3 × 1/10 = 2/387、 3/4 × 11/12 + 3/4 × 1/12 = 3/488、 16/17 × 17/18 × 18/19 = 16/1989、 17/20 × 20/21 × 21/22 = 17/2290、 18/23 × 23/24 × 24/25 = 18/2591、 1/7 ×(1/6 + 1/7)= 13/29492、 2/8 ×(1/7 + 1/8)= 30/22493、 3/9 ×(1/8 1/9)= 1/21694、 1/2 ÷ 8/9 ÷ 9/10 = 5/495、 2/3 ÷ 9/10 ÷ 10/11 = 22/2796、 3/4 ÷ 10/11 ÷ 11/12 = 9/1097、 1/2 × 60 = 3098、 2/3 × 65 = 130/399、 3/5 × 80 = 48100、 27/40 × 10/30 = 9/40希望这些题目和答案能够帮助您熟练掌握分数乘除法的简便运算方法,提高数学运算能力。
分数乘除法计算题专项练习(共5份)
分数乘除法计算题专项练习1:一、直接写出得数=4375⨯ =7997÷ =3456⨯ =21575÷ =4398⨯ =165÷ =38152019⨯ =23109÷ 15 -16 =47 ×1= 12 +17 = 1953×0= 878⨯= 9763÷= 5341+= 43÷43= 10÷10%= 12÷32=1.8×61= 5210965⨯⨯= 1517×60=二、看谁算得又对又快111471685÷÷ 35246583⨯⨯11555382619⨯÷ 2535312⨯÷38 ×4÷38 ×4 43853485÷⨯+58 ÷ 712 ÷ 710 12 ÷ 54 × 23 6÷103-103÷6 31×43÷(43-125) [35-(52+43)]÷431 ( 78 + 1316 )÷ 1316187×41+43×187 14×75÷14×7536×( 79 + 34 - 56 ) (94+231)×9+2314119523121÷⎪⎭⎫ ⎝⎛+÷ [2-( 65+85)]×127)+(10915731712÷- 78 ÷5+78 ÷22-1615÷75÷43 920 ÷[12 ×(25 +45 )]52×(43+51)÷1019 257×118+257÷311135919138⨯÷+ 】)【(182131125⨯+÷)1528554(53⨯+÷ 13441212⨯--)】(【)(61437337--÷÷ )】(【81125441÷-⨯÷36÷[(65-31)×3] (6.3-6.3×0.9)÷6.39.25×9.9+92.5% 18×25%+25.0426041⨯+⨯58×14+14÷83+25% 1516+(716-14)÷50%91%5.879191125.0÷-⨯+⨯ 21×3.2+5.6×0.5+1.2×50%375.0163121%25÷⨯-】)【(三、解方程322187=x 152498=÷x 3215254=+x x 65x =308x -31=916x +5×4.4=4053+41x =2017 7-32=2x21x -31x = 5 x -85x=31×4513%4041=+x x (1-60%)÷x =5134 -2x =1720 (1-25%)x =3.6四、求下面各比的比值1052:87 467:46.7 1063 :3045 :0.6 210:140 91:21小时:30分.五、化简下面各比65:13 123:3 1.1:114.9:0.721:6515:0.12 1平方米:2000平方厘米 0.1 吨:500千克24:48 3.6 :9 45 :2343:81 2.8:0.7 1:0.25分数乘除法计算题专项练习2:一、直接写出得数41÷ 54= 76÷6= (3+320 )×5=117×174= 1÷7+76= 92×2.7÷60%= 9 -87÷81= =4375⨯ =7997÷=38152019⨯ =4398⨯ =23109÷ =21575÷ =3456⨯ 57×715= 34 +12 ÷ 12 = 25 ÷12 = 518 ÷123= 二、看谁算得又对又快542154+⨯ 65144150⨯- 1691583⨯-543107⨯⎪⎭⎫⎝⎛+813261⨯- 613143⨯+11612587116⨯-⨯ 9753154⨯+74764918811+÷+ 5224)81127(⨯÷-248765⨯)+( 465761÷⨯)-(310735107÷⨯+三、解方程四、先化简比,再求比值25:40 0.7:9.856:52 4:34分数乘除法计算题专项练习3:一、直接写出得数34 ×1.2= 58 ×135 = 310 ÷ 56 = 137 ÷26 = 121651311⨯= 27381918⨯= 101734÷= 731÷= 44251511⨯=50133925⨯= 109180÷= 14117÷= (23 )2 = 65+67-200%= 7.5÷0.25×3= 二、看谁算得又对又快18×25%÷18×25% 12×31+12÷3271+75÷65+125 (43-151×9)÷53(53+103)÷(1-101) 85×74÷75501351⨯[1-(8341+)]÷4136×(916141++) 211523253÷+⨯383114132+÷+)( 921497243-÷-4115311753÷+⨯三、解方程x -85=10912x =10983x =109×2512 x ÷75=15四、先化简比,再求比值分数乘除法计算题专项练习4:一、直接写出得数25 ×415 = 8÷23 = 910 ÷35 = 1÷710 = 129÷32= 32+1.5= 28×141= 5÷1011 = 51×8÷54=(87+1613)÷1613= 310 ÷103 = 97÷87=12 +712 = 29 ÷35 = 58 ×23= =⨯3522115 =÷365127 =÷409103 二、看谁算得又对又快1-213 ÷813 -34 29 +12 ÷45 +38813 ÷7+17 ×6132546585⨯+)(1093265⨯-)( 653265÷÷ 20113209431+- 95694415+-187×41+43×187 53÷0.8÷1211255215161+÷+)( 32656132⨯+⨯ 211584352÷⨯-)( 22854217⨯÷三、解方程(45 +3.2)x =23 35 x -17 = 12x -3.25=0.752110331=+x2476143=-x x分数乘除法计算题专项练习5: 一、口算: 66+4.4==-8171 4.5÷9= 12.5÷0.5= 0×0.72= 4-2.4= 0.125×8= 3.6×25%= =⨯3121 0.92==÷8121 0.23÷0.1= =÷3523 .5+4.2= 1÷20%= =⨯⨯28159754 =+15253 32×25= =÷2552 0.5:=21=++13713651 852-98= =+-97195 4.8-1.23-2.77==÷÷52512 1.25×3.2×25=1.29+(1.71-1.5)= ( )2-23=1=+-+211211 =⨯÷⨯71417141二、下面各题怎样算简便就怎样算: ①5.48+8.73+4.52+0.27②)(13516111381611--+⑤9.25×9.9+92.5% ⑥9)13954(÷+⑦12520)5243(+⨯+ ⑧(4.8-1.6+54)×75%⑩6.38×37%+0.37×3.62○1149 × 15 ÷ 45○12 (15-14×47)×821○1345 ÷[(13 + 25 )×411] ○1427 ×89 +57 ×89三、解下列方程: ①613261+=x ②0.2x -2.6×5=8 ③156132=+x x ④2.9%302=+x x⑤5675.0:=x ⑥6.65%18=-x x。
分数乘除法计算题专项练习(共5份)
分数乘除法计算题专项练习(共5份)创作编号:GB8878185555334563BT9125XW创作者:凤呜⼤王*分数乘除法计算题专项练习1姓名:⼀、直接写出得数=4375?=7997÷ =3456? =21575÷ =4398?=165÷ =38152019? =23109÷ 15-16 =47 ×1= 12 +17 =1953 ×0= 878?= 9763÷= 5341+= 43÷43= 10÷10%= 12÷32= 1.8×61= 5210965??=1517×60=⼆、看谁算得⼜对⼜快111471685÷÷ 35555382619?÷2535312?÷38 ×4÷38×443853485÷?+58 ÷ 712 ÷ 710 12 ÷ 54 × 236÷103-103÷6 31×43÷(43-125)[35-(52+43)]÷431( 78 +1316 )÷ 1316187×41+43×187 14×75÷14×7536×( 79 + 34 - 56 ) (94+23 1)×9+2314 21×3.2+5.6×0.5+1.2×50%119三、解⽅程322187=x 152498=÷x3215254=+x x 65x =308x -31=916x +5×4.4=40(1-60%)÷x =5 21x +5 2x =2021四、求下⾯各⽐的⽐值1052:87 467:46.71063 :3045 :0.6 210:140 91:21五、化简下⾯各⽐65:13 123:31.1:114.9:0.7 21:6515:0.12六、列式计算1.4个118 的和除以38 ,商是多少?2.21减去21乘32的积,差是多少?3.⼀个数的 56 ⽐它的 3 423的和,等于⼀个数的23,这个数是多少?5.⽐⼀个数多12%的数是112,这个数是多少?七、已知正⽅形的⾯积是9平⽅厘⽶,求阴影部分⾯积。