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计算(能简便的要简便)40÷[(34-13)×3]85×0.75+15×75%910÷[25
问题详情
计算(能简便的要简便)
40÷[(
85×0.75+15×75%
7.85-1.89-2.11+2.15
[1-(
24×(
参考答案
(1)40÷[(34-13)×3]
=40÷[512×3],
=40÷54,
=32;
(2)85×0.75+15×75%
=85×0.75+15×0.75,
=(85+15)×0.75,
=100×0.75,
=75;
(3)910÷[25+(1-1011)]
=910÷[25+111],
=910÷2755,
=116;
(4)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(5)[1-(12+16)]÷13
=[1-23]÷13,
=13÷13,
=1;
(6)24×(14+18-16)
=24×14+24×18-24×16,
=6+3-4,
=5.
考点: