题目内容
下面各题能简算的要简算.
48×(
+
)÷
23-
×
÷
5÷[(
+
)×
].
48×(
| 7 |
| 12 |
| 1 |
| 3 |
| 2 |
| 3 |
23-
| 8 |
| 9 |
| 3 |
| 4 |
| 1 |
| 27 |
5÷[(
| 2 |
| 3 |
| 1 |
| 5 |
| 1 |
| 13 |
(1)48×(
+
)÷
,
=48×(
+
)×
,
=48×
×
+48×
×
,
=42+24,
=66;
(2)23-
×
÷
,
=23-
×
×27,
=23-18,
=5;
(3)5÷[(
+
)×
],
=5÷[
×
],
=5÷
,
=5×15,
=75.
| 7 |
| 12 |
| 1 |
| 3 |
| 2 |
| 3 |
=48×(
| 7 |
| 12 |
| 1 |
| 3 |
| 3 |
| 2 |
=48×
| 7 |
| 12 |
| 3 |
| 2 |
| 1 |
| 3 |
| 3 |
| 2 |
=42+24,
=66;
(2)23-
| 8 |
| 9 |
| 3 |
| 4 |
| 1 |
| 27 |
=23-
| 8 |
| 9 |
| 3 |
| 4 |
=23-18,
=5;
(3)5÷[(
| 2 |
| 3 |
| 1 |
| 5 |
| 1 |
| 13 |
=5÷[
| 13 |
| 15 |
| 1 |
| 13 |
=5÷
| 1 |
| 15 |
=5×15,
=75.
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