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下面各题能简算的要用简便计算.1.36+4.85+2.64+6.15 98.5÷2.5÷4 5.4÷[2.5×(3.7-2.9)]0.8×(4-3.6

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解决时间 2021-11-24 20:05
  • 提问者网友:焚苦与心
  • 2021-11-24 07:53
下面各题能简算的要用简便计算.1.36+4.85+2.64+6.15 98.5÷2.5÷4 5.4÷[2.5×(3.7-2.9)]0.8×(4-3.6
最佳答案
  • 五星知识达人网友:人间朝暮
  • 2021-11-24 08:56
(1)1.36+4.85+2.64+6.15,
=(1.36+2.64)+(4.85+6.15),
=4+11,
=15;

(2)98.5÷2.5÷4,
=98.5÷(2.5×4),
=98.5÷10,
=9.85;

(3)5.4÷[2.5×(3.7-2.9)],
=5.4÷[2.5×0.8],
=5.4÷2,
=2.7;

(4)0.8×(4-3.68)÷0.01,
=0.8×0.32÷0.01,
=0.256÷0.01,
=25.6;

(5)83.7-12.83-0.17,
=83.7-(12.83+0.17),
=83.7-13,
=70.7;

(6)5.96+13×(3.2-3.12),
=5.96+13×0.08,
=5.96+1.04,
=7.

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