题目内容
计算,怎样简便怎样算.
| 1.25×0.5×8×0.2 | 0.97×9+0.97 | 5.4÷[3×﹙3.8-2.9﹚]. |
(1)1.25×0.5×8×0.2,
=(1.25×8)×(0.5×0.2),
=10×0.1,
=1;
(2)0.97×9+0.97,
=0.97×(9+1),
=0.97×10,
=9.7;
(3)5.4÷[3×﹙3.8-2.9﹚],
=5.4÷[3×0.9],
=5.4÷2.7,
=2.
=(1.25×8)×(0.5×0.2),
=10×0.1,
=1;
(2)0.97×9+0.97,
=0.97×(9+1),
=0.97×10,
=9.7;
(3)5.4÷[3×﹙3.8-2.9﹚],
=5.4÷[3×0.9],
=5.4÷2.7,
=2.
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