Question

二点六乘以十一点八减零点九乘以二乘以二点六怎么简便

二点六乘以十一点八减零点九乘以二乘以二点六怎么简便

Answer 1

2.6×11.8-0.9×2×2.6
=2.6×(11.8-0.9×2)
=2.6×(11.8-1.8)
=2.6×10
=26

Answer 2

2.6*11.8-0.9*2*2.6
=2.6*11.8-1.8*2.6
=2.6*(11.8-1.8)
=2.6*10
=26