简便计算37.5×101-37.5 ...
答案:1 悬赏:60 手机版
解决时间 2021-02-21 17:27
- 提问者网友:几叶到寒
- 2021-02-21 12:52
简便计算37.5×101-37.5 ...
最佳答案
- 五星知识达人网友:一袍清酒付
- 2021-02-21 14:08
(1)37.5×101-37.5,
=(101-1)×37.5,
=100×37.5,
=3750;
(2)4.78-3.62-0.38+5.22,
=(4.78+5.22)-(3.62+0.38),
=10-4,
=6;
(3)1.69×3.3+1.69×5.7+1.69,
=1.69×(3.3+5.7+1),
=1.69×10,
=16.9;
(4)0.25×0.8×0.125×40,
=(0.25×40)×(0.125×0.8),
=10×0.1,
=1.
=(101-1)×37.5,
=100×37.5,
=3750;
(2)4.78-3.62-0.38+5.22,
=(4.78+5.22)-(3.62+0.38),
=10-4,
=6;
(3)1.69×3.3+1.69×5.7+1.69,
=1.69×(3.3+5.7+1),
=1.69×10,
=16.9;
(4)0.25×0.8×0.125×40,
=(0.25×40)×(0.125×0.8),
=10×0.1,
=1.
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