题目内容
1.25×2.5÷
×
×
.
| 1 |
| 32 |
| 10 |
| 9 |
| 9 |
| 10 |
1.25×2.5÷
×
×
,
=1.25×2.5×32×
×
,
=1.25×2.5×4×8×
×
,
=(1.25×8)×(2.5×4)×(
×
),
=10×10×1,
=100.
| 1 |
| 32 |
| 10 |
| 9 |
| 9 |
| 10 |
=1.25×2.5×32×
| 10 |
| 9 |
| 9 |
| 10 |
=1.25×2.5×4×8×
| 10 |
| 9 |
| 9 |
| 10 |
=(1.25×8)×(2.5×4)×(
| 10 |
| 9 |
| 9 |
| 10 |
=10×10×1,
=100.
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