4.25×7.1-0.5×42.5-0.425简便计算

Question

4.25×7.1-0.5×42.5-0.425简便计算

Answer 1

=4.25x7.1-5x4.25-4.25x0.1
=4.25x（7.1+5-0.1）
=4.25x12
=4.25x（10+2）
=4.25x10+4.25x2
=42.5+8.5
=51本回答被网友采纳

Answer 2

=4.25*（7.1-5-0.1）=4.25*2=8.5