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口算.125÷0.5=112-112÷112=1.25×34×8=47×5.6=15÷5×1

2022-08-14 00:57:30 问答库 阅读 200 次

问题详情

口算.
12

5

÷0.5=11

2

-11

2

÷11

2

=1.25×3

4

×8=4

7

×5.6=

1

5

÷5×1

5

×5=41

2

×0×41

2

=120×(1

15

+1

12

)=3

7

+0.29+4

7

=

31

5

-2

9

-7

9

=(3

4

-2

5

)×20=

参考答案

125÷0.5=2.8,112-112÷112=12,1.25×34×8=71247×5.6=3.2,15÷5×15×5=125,412×0×412=0,120×(115+112)=18,37+0.29+47=1.29,315-29-79=215,(34-25)×20=7.故答案为:2.8,12712,3.2,125,0,18,1.29,215,7.

考点:口算