数学简便计算
1.76乘以3点5目录
0.88乘三点5-0点四四×3的简便计算怎么写
0.88x3.5-0.44x3
=0.44x(7-3)
=0.44x4
=1.76
数学简便计算
2.45×1.9+0.245×91-24.5
=2.45×1.9+2.45×0.1×91-24.5
=2.45×1.9+2.45×9.1-24.5
=2.45×(1.9 9.1-1)
=2.45×1
=2.45
(1.72 1.75 1.78)÷(1.73 1.74 1.75 1.76 1.77)
=(1.75 1.75 1.75)÷(1.75 1.75 1.75 1.75 1.75)
=(1.75×3)÷(1.75×5)
=3/5
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