Question

1.377×1.1-1.377的脱式计算？

Answer 1

算式中都有1.377，可以用简便运算，然后通过结合律运算：
1.377×1.1-1.377x1
=1.377x（1.1-1）
=1.377x0.1
=0.1377

Answer 2

1.377×1.1-1.377
=1.377×(1.1-1)
=1.377×0.1
=0.1377

Answer 3

=1.377×1.1-1.377×1
=1.377×（1.1-1）
=1.377×0.1
=0.1377

Answer 4

心理过程：

1.377×1.1-1.377

=1.377×（1.1-1）

=1.377×0.1

=0.1377

Answer 5

1.377×(1.1-1)=0.1377