小学三年脱式竖式计算

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小学三年脱式竖式计算
小学三年级竖式、脱式计算
370÷7= 784-685= 76×15=486÷2= 607÷5= 900-807= 915÷3= 560÷4= 458+542= 423÷3= 87×19= 362÷6= 525÷3=254÷5=192÷4=602÷7=839÷9=726÷6=51×16 =78×22=416÷4=823÷8=63×43= 367÷4= 795÷5= 2×53= 79×97= 28×32=54×25 =48×61=39×42 =168÷8= 370÷5= 640÷7= 19×64= 470÷9= 522÷6= 312÷7= 570÷8= 810÷9= 660÷5= 804÷7= 462÷3=780÷4=729÷9=624÷6=2500+300=156-97= 106×51=48×34=82×16= 45×93=66×65= 55×18= 75×26= 816÷8=16×50= 72-24= 27×90= 86×7= 39×9=86×7= 51×17= 15×61= 87÷3= 465÷5=
70÷8= 520-430= 38×60= 270÷30= 92×7= 130×4= 16×4= 206÷2= 484÷4= 122÷2= 71-7= 69÷3= 62÷2= 64-36= 15×40= 42×30= 31×30= 15×80= 24×3= 201×8= 244×9= 135×11= 244×21= 177×13= 21×45= 64×75= 98×21= 288÷8= 255÷5= 336÷3=
448÷4= 234÷2=693÷231= 484÷11= 608÷16=
1-0.73= 3.6+4.8= 0.78-0.28= 20.9-9.7= 10-0.09=
3.8+0.12= 0.01+0.1=
4.9+
5.1= 4.7-0.47= 8.7-7.8=
26.7+147.2= 801.6-21.9= 100-19.2= 15.78+2.45= 33.4-9.48= 38.63-3.48= 1.16+4.77= 8.17-5.26= 2.26-0.86= 4.93+4.75= 55.5-1.9= 38.9-5.55= 0.7+0.9= 0.8+0.6= 8.24+3.76= 4.1-3.8= 0.78+2.2= 14+0.78= 14.6-0.34= 1.3+8.56= 8.65-6.31= 10-7.64= 13.6+8.46= 0.99+1.1= 10-0.1= 1 .5-0.5= 1-0.9= 46.8-2.8 = 47.6-2.15= 44.4+1.4=
1.7+9.66= 43.3+6.3= 55.5-1.9=
脱式计算,即递等式计算,把计算过程完整写出来的运算,也就是脱离竖式的计算。

在计算混合运算时,通常是一
步计算一个算式(逐步计算,等号不能写在原式上),要写出每一步的过程。

一般来说,等号要往前,不与第一行对齐。

也就是离开原式计算。

方法:
主要掌握的是记住要先算乘、除法,后算加、减法。

在乘除法连继计算时中,要按从左往右的顺序依次计算。

遇到括号,要首先计算括号内部。

在脱式过程中要按运算顺序划出运算顺序线,还要做到“三核对”:
一、要核对从书上把题抄到作业本上数字、符号是否抄对;
二、要核对从横式抄到草稿竖式的数字、符号是否抄对;
三、要核对把草稿竖式上的得数,抄到横式上是否抄对,小数点是否点对地方,有无遗漏。

25+32×23 52+18×12 17+34×19
= = =
= = =
37+16×28 65+11×12 56+37×21
= = =
= = =
61+12×23 43+21×23 45+32×55
= = =
= = =
38+25×31 48+52×21 87+35×49
= = =
= = =
99+46×97 44+81×33 31+98×76
= = =
= = =
38+53×47 67+81×90 99+54×56
= = =
= = =
96+72×44 98+55×67 37+43×77 = = =
= = =
32+58×86 25+67×22 44+88×22 = = =
= = =
99+65×34 89+78×46 48+63×91 = = =
= = =
56+89×77 35+49×82 47+99×89 = = =
= = =
58+85×33 49+65×33 79+92×93 = = =
= = =
39+83×55 89+56×61 88+38×49 = = =
= = =
125+82×37 152+58×33 117+58×77 = = = = = =
132+12×37 250+23×38 440+13×36 = = = = = =
199+25×89 819+49×90 418+57×67 = = = = = =
516+27×36 315+57×34 147+28×36 = = = = = =
518+18×47 419+29×54 128+28×19 = = = = = =
319+32×56 189+42×37 818+41×53 = = = = = =
32+65×37 850+27×38 269+85×39 = = = = = =
215+35×47 652+78×36 107+29×64 = = =
671+92×23 493+18×67 465+85×34 = = = = = =
378+54×27 498+56×26 807+51×46 = = = = = =
909+37×35 414+58×47 731+59×67 = = = = = =
308+47×87 167+81×90 299+33×77 = = = = = =
506+21×49 190+76×34 41+47×36 = = = = = =
245+53×69 752+53×87 817+56×89 = = = = = =
837+68×36 865+98×49 356+76×58 = = = = = =
538+27×38 548+52×59 87+29×78 = = = = = =
299+39×48 544+56×21 531+51×88 = = = = = =
38+23×38 67+59×57 99+35×36 = = =
= = =
516+55×65 90+53×38 49+82×49 = = = = = =
265+54×66 552+53×46 417+88×62 = = = = = =
237+26×48 665+39×45 256+15×64 = = = = = =
761+63×25 643+31×63 645+42×83 = = = = = =
999+26×63 644+42×39 431+24×66 = = =
38+72×26 567+35×61 699+53×16 = = = = = =
506+56×56 19+23×93 99+53×33 = = = = = =
125+16×55 352+28×32 217+29×37 = = = = = =
307+46×52 265+23×53 556+73×26 = = = = = =
631+52×33 243+21×23 345+21×37 = = = = = =
378+49×77 478+56×65 787+53×53 = = = = = =
= = =
438+55×69 67+51×38 899+35×51
= = =
= = =
506+32×64 177+58×35 741+34×57
= = =
= = =
689+22×89872+23×52 412+26×62
= = =
= = =
735-35x12= 540÷(65-59) 789-13x45 = = = = = =
22×4+221 21×3+410 40÷2+174 = = = = = =
147+72÷8 9×4+420 2×80÷4 = = =
= = =
120×5÷2 202+36÷9 30÷5+240 = = =
81÷9+877 921+7×4 66×5+774
80×6×2 770÷7+65 807+20÷2
= = =
= = =
100-50÷5 35-35÷7 302+30×2
= = =
= = =
600×8÷3 40+100÷5 434+25×5
= = =
= = =
60-12×3 64÷8+456 640+60×4
= = =
= = =
56÷7+36÷6 500×(400-396) 72÷9-5 = = = = = =
564+264-453 7650-(546+4530) 65×9-450
= = =
= = =
9×80+980 9000-(4500+250) 6700+72÷8 = = = = = =
14×6+9×5 900÷(71-68) 180÷9-42÷6
= = =
12÷6+45×3 8×(910-720) 760-540+1110
= = =
= = =
6500+1250-3500 80×30+5600 9450-3200-4200 = = =
= = =
2400÷6-45 800×7-180 1600÷2+230
= = =
4000 ÷8 + 350 320÷8+64 270 ÷3 ×9
= = =
= = =
630 ÷9 + 320 2800+32×6 300÷6×9
= = =
= = =
(6900-2400)÷5 (72÷9)÷(56÷8) 54 ÷9 ×8 = = = = = =
280×4 ÷5 60×8+1570 60×(23-17) = = =
= = =
22×4+221 21×3+410 40÷2+174
= = =
147+72÷8 9×4+420 2×80÷4
= = =
= = =
120×5÷2 202+36÷9 30÷5+240 = = =
= = =
81÷9+877 66×5+774 921+7×4
= = =
= = =
80×6×2 770÷7+65 807+20÷2 = = =
= = =
100-50÷5 35-35÷7 302+30×2
= = =
= = =
600×8÷3 40+100÷5 434+25×5 = = =
= = =
60-12×3 64÷8+456 640+60×4
= = =
5×7-48÷6 42÷7+36÷6 37×4+19×8 = = = 10×4-20÷4 15÷3+10÷5 25÷5+42÷6 = = = = = =
35÷5+8×7 72÷9-36÷6 21×4-54÷9 = = = = = =
72÷8+9×5 36÷4+21×2 25÷5-16÷4 = = = = = =
56÷7+36÷6 500×(400-396) 72÷9-5
= = =
= = =
564+264-453 7650-(546+4530) 65×9-450 = = =
= = =
9×80+980 9000-(4500+250) 6700+72÷8
= = =
= = =
14×6+9×5 900÷(71-68) 180÷9-42÷6
= = =
= = =
12÷6+45×3 8×(910-720) 760-540+1110
= = =
(6900-2400)÷5 75÷15+20×5 3090+6×6
= = =
= = =
(387-387)+0 160-160÷80 750+550÷5
= = =
= = =
(111+189)×3 125×8÷100 6×250×0
= = =
(1+7)×(16-6) 810×4÷4 33÷11+4×9
= = =
= = =
187+299-299 587+496-674 2660+26÷26
= = =
= = =
153÷153+657 32÷(32÷16) 300-(300-222) = = = = = =
75÷15+20×5 (150-75)×(25-20)
= =
= =
3390-10×95 687+(99-67)
= =
1000+(1000-988)3560+20×90
= =
= =
(250-150)÷(30÷6) 687+999÷3
= =
= =
(4870-3675)+7200÷9 (9467-5642)÷(350÷70) = =
= =
960÷4×9 350÷5×9 450÷5+1250
= = =
= = =
(6900-2400)÷5 75÷15+20×5 3090+6×6
= = =
= = =
(387-387)+0 160-160÷80 750+550÷5
= = =
= = =
(111+189)×3 125×8÷100 6×250×0 = = =
= = =
(1+7)×(16-6) 810×4÷4 33÷11+4×9 = = =
187+299-299 587+496-674 2660+26÷26
= = =
= = =
153÷153+657 32÷(32÷16) 300-(300-222) = = = = = =
75÷15+20×5 (150-75)×(25-20)
= =
= =
3390-10×95 687+(99-67)
= =
= =
1000+(1000-988)3560+20×90
= =
= =。

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