28÷7×9
=4×9
=36
.
30+56÷8
=30+7
=37
.
4×9÷6
=36÷6
=6
.
56-4×5
=56-20
=36
.
78-(50+10)
=78 - 60
=18
.
36÷(15-6)
=36÷9
=4
脱式计算 28÷7×9 30+56÷8 4×9÷6 56-4×5 78-(50+10) 36÷(15-6)
脱式计算 28÷7×9 30+56÷8 4×9÷6 56-4×5 78-(50+10) 36÷(15-6)
数学人气:952 ℃时间:2020-04-19 11:01:32
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