Question

5.5×9.9+0.1×5.5 脱式计算，简便计算

Answer 1

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

Answer 2

原式=5.5*（9.9+0.1）=5.5*10=55

Answer 3

 

追答

求采纳，谢谢

Answer 4

=5.5×（9.9+0.1）
=5.5×10
=55

Answer 5

原式=（9.9+0.1）×5.5=10×5.5=55