1.8x2.6+7.5x1.8-1.8的简便计算

2025-05-17 17:33:51
推荐回答(3个)
回答1:

1.8x2.6+7.5x1.8-1.8
=1.8x(2.6+7.5-1)
=1.8x9+1.8x0.1
=16.2+0.18
=16.38

回答2:

回答3:

1.8X(2.6+7.5-1)=1.8X9.1=1.8x(9+0.1)=1.8x9+1.8x0.1=16.2+0.18=16.38