4.9*10.1怎么简便计算

2024-11-22 15:48:38
推荐回答(2个)
回答1:

4.9*10.1
=4.9*(10+0.1)
=4.9*10+4.9*0.1
=49+0.49
=49.49

回答2:

4.9*(10+0.1)