题目内容
计算下面各题,能简算的要简算.
(
+
-
)÷
×
-
×
.
(
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 24 |
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 3 |
| 3 |
| 8 |
(1)(
+
-
)÷
,
=(
+
-
)×24,
=
×24+
×24-
×24,
=14+9-20,
=23-20,
=3;
(2)
×
-
×
,
=
×(
-
),
=
×
,
=
.
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 24 |
=(
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 6 |
=
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 6 |
=14+9-20,
=23-20,
=3;
(2)
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 3 |
| 3 |
| 8 |
=
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 3 |
=
| 3 |
| 8 |
| 1 |
| 2 |
=
| 3 |
| 16 |
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