九点9×4点8+0点四八用脱式怎么计算这道算术题

九点9×4点8+0点四八用脱式怎么计算这道算术题
2024-11-16 13:37:35
推荐回答(3个)
回答1:

9.9 x 4.8 + 0.48
= (10 - 0.1)x 4.8 + 0.48
= 10 x 4.8 - 0.1 x 4.8 + 0.48
= 48 - 0.
= 48

回答2:

9.9*4.8+0.48
=0.48*(99+1)
=0.48*100
=48

回答3:

=9.9X4.8十0.1X4.8
=(9.9+o.1)X4.8
=1OX4.8
=48