题目内容
在算式中填上一个数,使它能用乘法分配律进行简便计算并算出来.
×15+0.12÷______.
| 2 |
| 25 |
括号内填
;
×15+0.12÷
,
=
×15+
×15,
=(
+
)×15,
=
×15,
=3.
故答案为:
.
| 1 |
| 15 |
| 2 |
| 25 |
| 1 |
| 15 |
=
| 2 |
| 25 |
| 3 |
| 25 |
=(
| 2 |
| 25 |
| 3 |
| 25 |
=
| 1 |
| 5 |
=3.
故答案为:
| 1 |
| 15 |
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