Question

1.2x2.5加8.8x2.5简便方法

Answer 1

1.2*2.5+8.8*2.5 = （1.2+8.8）*2.5 =10*2.5=25

Answer 2

1.2x2.5+8.8x2.5
=（1.2+8.8）x2.5
运用乘法分配律
=10x2.5
=25

祝学习进步。