题目内容
| 16 |
| 5 |
| 16 |
| 5 |
| 4 |
| 5 |
| 8 |
| 9 |
| 8 |
| 9 |
| 2 |
| 9 |
| 20 |
| 3 |
| 20 |
| 3 |
| 3 |
| 5 |
3
| 4 |
| 7 |
3
+| 4 |
| 7 |
| 3 |
| 7 |
分析:先求出0.5×8的结果,再根据被除数=除数×商,一个因数=积÷另一个因数,一个加数=和-另一个加数,列式计算即可求解.
解答:解:因为0.5×8=4,
4×
=
,
4×
=
,
4÷
=
,
4-
=3
,
所以
÷
=
÷
=
×
=3
+
=0.5×8.
故答案为:
,
,
,3
.
4×
| 4 |
| 5 |
| 16 |
| 5 |
4×
| 2 |
| 9 |
| 8 |
| 9 |
4÷
| 3 |
| 5 |
| 20 |
| 3 |
4-
| 3 |
| 7 |
| 4 |
| 7 |
所以
| 16 |
| 5 |
| 4 |
| 5 |
| 8 |
| 9 |
| 2 |
| 9 |
| 20 |
| 3 |
| 3 |
| 5 |
| 4 |
| 7 |
| 3 |
| 7 |
故答案为:
| 16 |
| 5 |
| 8 |
| 9 |
| 20 |
| 3 |
| 4 |
| 7 |
点评:考查了乘与除的互逆关系,加法和减法的关系,本题关键是先求出0.5×8的结果.
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