简便方法算:1.8x0.25十0.75

简便方法算:1.8x0.25十0.75
2025-04-13 13:09:05
推荐回答(1个)
回答1:

1.8x0.25十0.75
=1.8x0.25+3x0.25
=(1.8+3)x0.25
=2.1x0.25
=0.525