问题 解答题
列竖式计算下面各题.
0.86×7=0.79×4=3.5×16=12.5×42=18.6×23=
0.58×32=0.8×7=2.5×6=2.05×4=12.4×7=
36.8×9=0.7×4=3.6×3=2.3×5=3.3×8=
答案

0.86×7=6.02,

0.86

×7
6.02

0.79×4=3.16,

0.79

×4
3.16

3.5×16=56,

3.5

×16
210

35
56.0

12.5×42=525,

12.5

×42
250

500
525.0

18.6×23=427.8,

18.6

×23
558

372
427.8

0.58×32=18.56,

0.56

×32
116

174
18.56

0.8×7=5.6,

0.8

×7
5.6

2.5×6=15,

2.5

×6
15.0

2.05×4=8.2,

2.05

×4
8.20

12.4×7=86.8,

12.4

×7
86.8

36.8×9=331.2,

36.8

×9
331.2

0.7×4=2.8,

0.7

×4
2.8

3.6×3=10.8,

3.6

×3
10.8

2.3×5=11.5,

2.3

×5
11.5

3.3×8=26.4.

3.3

×8
26.4

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