3.14乘1又3/8+0.314乘6又1/4-31.4乘0.2 简便计算!

问题描述:

3.14乘1又3/8+0.314乘6又1/4-31.4乘0.2 简便计算!

3.14乘1又3/8+0.314乘6又1/4-31.4乘0.2
=3.14×1又3/8+3.14×0.625-3.14×2
=3.14×(1.375+0.625-2)
=3.14×0
=0