五年级数学计算题20道及答案大全

2022-03-21 20:07:16   文档大全网     [ 字体: ] [ 阅读: ]

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年级数学计算题20道及答案大全

12.5*32*0.125

=2.5*4*8*0.125 =10*1 =10

23.5-7+6.5 =3.5+6.5-7 =3

31.2×2.5+0.8×2.5 =2.5(1.2+0.8) =25

48.9×1.25-0.9×1.25 =1.25(8.9-0.9) =10

512.5×7.4×0.8 =12.5×0.8×7.4 =74

66.5×9.5+6.5×0.5 =6.5×(9.5+0.5 =6.5×10 =65

70.35×1.6+0.35×3.4 =0.35*1.6+3.4 =0.35*5 =1.75

86.72-3.28-1.72 =6.75-3.28+1.72 =6.75-5 =1.75

90.45+6.37+4.55 =0.45+4.55+6.37 =5+6.37 =11.37

1028×12.5-12.5×20 =28-20*12.5 =8*12.5 =100

1123.65-3.07+3.65 =23.65-3.65-3.07 =20-3.07 =16.93

12)(4+0.4×0.258×7×1.25 =4+1*7*10


=5*7*10 =350

131.65×99+1.65 =1.65*99+1 =1.65*100 =165

1427.85-7.85+3.4 =27.85-7.85+3.4 =20+3.4 =23.4

1548×1.25+50×1.25×0.2×8 7.8×9.9+0.78 =7.8*9.9+0.1 =7.8*10 =78

164.8×46+4.8×54 =46+54*4.8 =100*4.8 =480

17673-327-173 =673-327+173 =673-500 =173

184.44*2.5 =1.11*4*2.5 =1.11*10 =11.1

193.5÷1.4

=3.5÷0.7)÷(1.4÷0.7 =5÷2 =2.5

201+2+3+4+5.+99+100

=1+99+2+98+3+97+.+49+51+50 =100÷2-1*100+50 =4900+50 =4950


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