8×75%-3÷3⼀4 8.5×0.75+7.5×75% 5⼀8-5⼀6×(1⼀4-25%)能简算要简算

8×75%-3÷3⼀4 8.5×0.75+7.5×75% 5⼀8-5⼀6×(1⼀4-25%)能简算要简算
2024-12-20 13:40:48
推荐回答(1个)
回答1:

8×75%-3÷3/4
=8×3/4-4
=6-4
=2

8.5×0.75+7.5×75%
=8.5×0.75+7.5×0.75
=0.75×(8.5+7.5)
=3/4×16
=12

5/8-5/6×(1/4-25%)
=5/8-5/6×(1/4-1/4)
=5/8-5/6×0
=5/8-0
=5/8

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