题目内容
用适当的方法计算
[4-(
| 13×
| 63÷14 | (
|
(1)[4-(
-
)]×
,
=[4-
]×
,
=
×
,
=
;
(2)13×
-
,
=(13-1)×
,
=12×
,
=10;
(3)63÷14,
=9×7÷(7×2),
=9×(7÷7)÷2,
=9×1÷2,
=4.5;
(4)(
+
×
)÷
,
=(
+
)×18,
=1×18,
=18.
| 3 |
| 4 |
| 1 |
| 8 |
| 4 |
| 29 |
=[4-
| 5 |
| 8 |
| 4 |
| 29 |
=
| 27 |
| 8 |
| 4 |
| 29 |
=
| 27 |
| 58 |
(2)13×
| 5 |
| 6 |
| 5 |
| 6 |
=(13-1)×
| 5 |
| 6 |
=12×
| 5 |
| 6 |
=10;
(3)63÷14,
=9×7÷(7×2),
=9×(7÷7)÷2,
=9×1÷2,
=4.5;
(4)(
| 4 |
| 9 |
| 2 |
| 3 |
| 5 |
| 6 |
| 1 |
| 18 |
=(
| 4 |
| 9 |
| 5 |
| 9 |
=1×18,
=18.
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