Question

3.6乘以0.71加7.1乘以0.64有简便计算法吗

3.6乘以0.71加7.1乘以0.64有简便计算法吗

Answer 1

3.6×0.71+7.1×0.64
=3.6×0.71+0.71×6.4
=(3.6+6.4)×0.71
=10×0.71
=7.1

Answer 2

3.6×0.71+7.1×0.64
=0.71×（3.6+6.4）
=0.71×10
=7.1

Answer 3

g