题目内容
计算下面各题,能简算的要简算.
| (15-14×
|
|
(1)
×
÷
,
=
×
×
,
=
;
(2)(15-14×
)×
÷[(
+
)×
],
=(15-8)×
÷[
×
],
=7×
÷
,
=7×
×
,
=10;
(3)
×
+
×
,
=(
+
)×
,
=1×
,
=
.
| 4 |
| 9 |
| 1 |
| 5 |
| 4 |
| 5 |
=
| 4 |
| 9 |
| 1 |
| 5 |
| 5 |
| 4 |
=
| 1 |
| 9 |
(2)(15-14×
| 4 |
| 7 |
| 8 |
| 21 |
| 1 |
| 3 |
| 2 |
| 5 |
| 4 |
| 11 |
=(15-8)×
| 8 |
| 21 |
| 11 |
| 15 |
| 4 |
| 11 |
=7×
| 8 |
| 21 |
| 4 |
| 15 |
=7×
| 8 |
| 21 |
| 15 |
| 4 |
=10;
(3)
| 2 |
| 7 |
| 8 |
| 9 |
| 5 |
| 7 |
| 8 |
| 9 |
=(
| 2 |
| 7 |
| 5 |
| 7 |
| 8 |
| 9 |
=1×
| 8 |
| 9 |
=
| 8 |
| 9 |
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