题目内容
用你喜欢的方法计算
|
|
(1)
÷7+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(2)
+(
-
)÷
,
=
+
×2,
=
+
,
=
.
| 8 |
| 15 |
| 1 |
| 7 |
| 7 |
| 15 |
=
| 8 |
| 15 |
| 1 |
| 7 |
| 1 |
| 7 |
| 7 |
| 15 |
=(
| 8 |
| 15 |
| 7 |
| 15 |
| 1 |
| 7 |
=1×
| 1 |
| 7 |
=
| 1 |
| 7 |
(2)
| 3 |
| 8 |
| 7 |
| 8 |
| 1 |
| 4 |
| 1 |
| 2 |
=
| 3 |
| 8 |
| 5 |
| 8 |
=
| 3 |
| 8 |
| 10 |
| 8 |
=
| 13 |
| 8 |
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