题目内容
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 4 |
| 89 |
| 42 |
| 89 |
| 42 |
分析:把小数化为分数,先算乘法和除法,再算减法.
解答:解:
×5
-
÷0.35
=
×
-
÷
=
×
-
×
=
-
=
.
故答案为:
.
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 4 |
=
| 1 |
| 2 |
| 17 |
| 3 |
| 1 |
| 4 |
| 7 |
| 20 |
=
| 1 |
| 2 |
| 17 |
| 3 |
| 1 |
| 4 |
| 20 |
| 7 |
=
| 17 |
| 6 |
| 5 |
| 7 |
=
| 89 |
| 42 |
故答案为:
| 89 |
| 42 |
点评:此题考查了分数的四则混合运算,注意运算顺序和运算法则以及数字转化.
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