Question

1.25乘0.88简便运算两种方法

Answer 1

第一种：把0.88拆成4*0.22
1.25*0.88
=1.25*4*0.22
=5*0.22
=1.1
第二种：把0.88拆成8*0.11
1.25*0.88
=1.25*8*0.11
=10*0.11
=1.1

Answer 2

1.25x0.88
=1.25x8x0.11
=10x0.11
=1.1
1.25x0.88
=1.25x4x0.22
=5x0.22
=1.1
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Answer 3

1.25乘0.88
=1.25x8x0.11
=10x0.11
=1.1

1.25乘0.88
=1.25x(0.8+0.08)
=1.25x0.8+1.25x0.08
=1+0.1
=1.1

Answer 4

1.25*0.8*1.1
=1*1.1
=1.1
1.25*8*0.11
=10*0.11
=1.1

Answer 5

1.25×0.88
=1.25×8×0.11
=10×0.11
=1.1

1.25×0.88
=1.25×8×0.88÷8
=10×0.88÷8
=8.8÷8
=1.1