
5.6X0.7+5.6X0.4-0.56 (37-3.6除4.8)除12.5简便计算?
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5.6X0.7+5.6X0.4-0.56
=5.6×(0.7+0.4-0.1)
=5.6×1
=5.6
(37-3.6÷4.8)÷12.5
=(37-18/5÷24/5)÷25/2
=(37-18/5×5/24)×2/25。
=(37-3/4)×2/25
=37×2/25-3/4×2/25。
=74/25-3/50
=2+24/25-3/50
=2+48/50-3/50
=2+45/50
=2又9/10
=5.6×(0.7+0.4-0.1)
=5.6×1
=5.6
(37-3.6÷4.8)÷12.5
=(37-18/5÷24/5)÷25/2
=(37-18/5×5/24)×2/25。
=(37-3/4)×2/25
=37×2/25-3/4×2/25。
=74/25-3/50
=2+24/25-3/50
=2+48/50-3/50
=2+45/50
=2又9/10
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