Question

38ⅹ四分之三+61x0.75+3÷4怎样最简算？

Answer 1

同学，你首先应该知道本题的关键是看到四分之三，3÷4都是0.75，所以可以提取出来，故
38ⅹ四分之三+61x0.75+3÷4
=38x3÷4+61x0.75+0.75
=38x0.75+61x0.75+0.75
=0.75x（38+61+1）
=0.75x100
=75

Answer 2

观察题目，可以看出来一个共同点，四分之三等于0.75，3÷4=0.75，所以三个乘式有一个一样的数，提取出0.75，则原式＝0.75*(38+61+1)=0.75*100=75

Answer 3

解:简便运算如下:
38x3/4+61x0.75+3÷4
=38x0.75+61x0.75+0.75
=0.75x(38+61+1)
=0.75x100
=75

Answer 4

最筒算方如下38x3/4+61x0.75+3/4=38x3/4十61X3/4+3/4=(38+61)x3/4+3/4=99X3/4+3/4=3/4(99十|)=3/4x100=75

Answer 5

38×四分之三+61×0.75+3÷4
=38×0.75+61×0.75+1×0.75
=（38+61+1）×0.75
=100×0.75
=75