3.6+(7.43-3.83)×2.5用简便方法计算
答案:2 悬赏:30 手机版
解决时间 2021-03-08 00:56
- 提问者网友:呐年旧曙光
- 2021-03-07 20:05
3.6+(7.43-3.83)×2.5用简便方法计算
最佳答案
- 五星知识达人网友:神鬼未生
- 2021-03-07 21:28
3.6+(7.43-3.83)×2.5
=3.6+3.6×2.5
=3.6+4×0.9×2.5
=3.6+0.9×(4×2.5)
=3.6+0.9×10
=3.6+9
=12.6
=3.6+3.6×2.5
=3.6+4×0.9×2.5
=3.6+0.9×(4×2.5)
=3.6+0.9×10
=3.6+9
=12.6
全部回答
- 1楼网友:老鼠爱大米
- 2021-03-07 21:51
(1)3.6+(7.43-3.83)×2.5
=3.6+3.6×2.5,
=3.6+9,
=12.6;
(2)100×9.5×0.98+9.5×2
=9.5×98+9.5×2,
=9.5×(98+2),
=9.5×100,
=950;
(3)54.3×1.8+54.3×0.3-54.3×0.1
=54.3×(1.8+0.3-0.1),
=54.3×2,
=108.6;
(4)〔(2+2.8)÷0.6-1.5〕×0.04
=(4.8÷0.6-1.5)×0.04,
=(8-1.5)×0.04,
=6.5×0.04,
=0.26.
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