Question

0.125×2又3/4+1/8×6.25点12.5%,简便计算？

Answer 1

计算如下:
235×0.043 2点35×7.2-23点5×0.15
=235×0.043 2.35×7.2-23.5×0.15
=2.35×4.3 2.35×7.2-2.35×1.5
=2.35×(4.3 7.2-1.5)
=2.35×10
=23.5

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Answer 2

0.125x2又3／4＋1／8x6.25十12.5％

＝0.125x2.75+0.125x6.25+0.125

＝0.125x（2.75+6.25+1）

＝0.125x10

＝1.25

Answer 3

将原式化成小数：
0.125×2.75+0.125×6.25+0.125
=0.125×(2.75+6.25+1)
=0.125×10
=1.25

Answer 4

0.125*2又3/4+1/8*6.25+12.5%
=0.125*2又3/4+0.125*6又1/4+0.125
乘法分配律简便运算
=0.125*（2又3/4+6又1/4+1）
=0.125*10
=1'25