(8×+6)÷8×75%-3÷8.5×0.75+7.5×75%×88+÷÷12.5%×(+)-×(+25%)

发布时间:2020-08-08 01:53:18

(8×+6)÷8×75%-3÷8.5×0.75+7.5×75%×88+÷÷12.5%×(+)-×(+25%)

网友回答

解:(1)(8×+6)÷,
=(6+6),
=12×12,
=144;
(2)8×75%-3÷,
=8×-3×,
=6-4,
=2;
(3)8.5×0.75+7.5×75%,
=8.5×+7.5×,
=(8.5+7.5)×,
=16×,
=12;
(4)×88+÷,
=×88+×88,
=(+)×88,
=1×88,
=88;
(5)÷12.5%×(+),
=÷×,
=1×,
=1;
(6)-×(+25%),
=-×(+),
=-×,
=-,
=.
解析分析:(1)(8×+6)÷,(2)8×75%-3÷,(5)÷12.5%×(+),(6)-×(+25%),可直接按运算顺序计算;
(3)8.5×0.75+7.5×75%,(4)×88+÷可按乘法分配律算.


点评:此题考查了整数、分数、小数、百分数四则混合运算的运算顺序以及运算定律的运用.
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