题目内容
计算下面各题.
7.34+
+2.66+
15-5÷12-
.
7.34+
| 11 |
| 8 |
| 21 |
| 8 |
15-5÷12-
| 7 |
| 12 |
(1)7.34+
+2.66+
,
=(7.34+2.66)+(
+
),
=10+4,
=14;
(2)15-5÷12-
,
=15-(
+
),
=15-1,
=14.
| 11 |
| 8 |
| 21 |
| 8 |
=(7.34+2.66)+(
| 11 |
| 8 |
| 21 |
| 8 |
=10+4,
=14;
(2)15-5÷12-
| 7 |
| 12 |
=15-(
| 5 |
| 12 |
| 7 |
| 12 |
=15-1,
=14.
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