题目内容
计算下面各题.
| 3.2×2.5+7.28 | 0.75×18-0.15 | 3.8+2.74×1.5 | 5.5×17.3+6.7×5.5. |
(1)3.2×2.5+7.28
=8+7.28
=15.28;
(2)0.75×18-0.15
=13.5-0.15
=13.35;
(3)3.8+2.74×1.5
=3.8+4.11
=7.91;
(4)5.5×17.3+6.7×5.5
=5.5×(17.3+6.7)
=5.5×24
=132.
=8+7.28
=15.28;
(2)0.75×18-0.15
=13.5-0.15
=13.35;
(3)3.8+2.74×1.5
=3.8+4.11
=7.91;
(4)5.5×17.3+6.7×5.5
=5.5×(17.3+6.7)
=5.5×24
=132.
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