题目内容
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分析:
加0.5的和是
+0.5,12.75与
的差是12.75-
,用(
+0.5)乘以(12.75-
),列式解答即可.
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| 2 |
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| 2 |
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解答:解:(
+0.5)×(12.75-
),
=1×(
-
),
=
-
,
=
,
=12
;
答:积是12
.
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| 2 |
| 1 |
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=1×(
| 51 |
| 4 |
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=
| 153 |
| 12 |
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| 12 |
=
| 149 |
| 12 |
=12
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| 12 |
答:积是12
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| 12 |
点评:在此类问题中,问句中的“积、商”等一般都是运算过程中的最后一步.
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