题目内容
计算下面各题.(能够简便计算的要求简便计算)
| 45×19+4680÷12= |
| ||||||||
| 9.8×[3.45-(3.85-0.47)] | [
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(1)45×19+4680÷12,
=855+390,
=1245;
(2)
| 9 |
| 25 |
| 6 |
| 25 |
=
| 9 |
| 25 |
| 1 |
| 6 |
| 1 |
| 6 |
| 6 |
| 25 |
=(
| 9 |
| 25 |
| 6 |
| 25 |
| 1 |
| 6 |
=
| 3 |
| 5 |
| 1 |
| 6 |
=
| 1 |
| 10 |
(3)9.8×[3.45-(3.85-0.47)],
=9.8×[3.45-3.38],
=9.8×0.07,
=0.686;
(4)[
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 5 |
| 7 |
| 10 |
=[
| 1 |
| 2 |
| 3 |
| 20 |
| 7 |
| 10 |
=
| 7 |
| 20 |
| 7 |
| 10 |
=
| 1 |
| 2 |
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相关题目
计算下面各题.(能够简便计算的要求简便计算)
| 45×19+4680÷12= | |
| 9.8×[3.45-(3.85-0.47)] | [ |