5.5×9.9+0.1×5.5 脱式计算,简便计算

2025-03-10 10:24:48
推荐回答(5个)
回答1:

5.5x9.9+0.1x5.5
=(9.9十0.1)X5.5
=100x5.5
=550

回答2:

原式=5.5*(9.9+0.1)=5.5*10=55

回答3:

 

回答4:

=5.5×(9.9+0.1)
=5.5×10
=55

回答5:

原式=(9.9+0.1)×5.5=10×5.5=55