题目内容
计算下面各题:
(1)540÷12×9+482
(2)
÷
+
×
(3)(
-
+
)×24
(4)20÷[1-(
+
)].
(1)540÷12×9+482
(2)
| 7 |
| 10 |
| 1 |
| 5 |
| 3 |
| 8 |
| 2 |
| 3 |
(3)(
| 5 |
| 6 |
| 1 |
| 4 |
| 5 |
| 12 |
(4)20÷[1-(
| 1 |
| 4 |
| 1 |
| 3 |
(1)540÷12×9+482,
=45×9+482,
=405+482,
=887;
(2)
÷
+
×
,
=
×5+
,
=
+
,
=
;
(3)(
-
+
)×24,
=
×24-
×24+
×24,
=20-6+10,
=24;
(4)20÷[1-(
+
)],
=20÷[1-
],
=20÷
,
=20×
,
=48.
=45×9+482,
=405+482,
=887;
(2)
| 7 |
| 10 |
| 1 |
| 5 |
| 3 |
| 8 |
| 2 |
| 3 |
=
| 7 |
| 10 |
| 1 |
| 4 |
=
| 7 |
| 2 |
| 1 |
| 4 |
=
| 15 |
| 4 |
(3)(
| 5 |
| 6 |
| 1 |
| 4 |
| 5 |
| 12 |
=
| 5 |
| 6 |
| 1 |
| 4 |
| 5 |
| 12 |
=20-6+10,
=24;
(4)20÷[1-(
| 1 |
| 4 |
| 1 |
| 3 |
=20÷[1-
| 7 |
| 12 |
=20÷
| 5 |
| 12 |
=20×
| 12 |
| 5 |
=48.
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