Question

0.32X(0.25+0.125)怎么简便计算？

Answer 1

0.32×(0.25+0.125)这么简便计算
用乘法分配律使计算简便：
0.32×(0.25+0.125)
=0.32×0.25+0.32×0.125
=0.08×（4×0.25）+0.04×（8×0.125）
=0.08×1+0.04×1
=0.08+0.04
=0.12
扩展资料：
乘法分配律：
两个数相加(或相减)再乘另一个数，等于把这个数分别同两个加数（减数）相乘,再把两个积相加（相减），得数不变。
用字母表示：　　
（a+b）× c=a×c+b×c
变式：
（a-b）× c=a×c-b×c

Answer 2

原式=0.32*（0.25+0.125）
=0.01*4*8*（0.25+0.125）
=0.01*4*0.25*8+0.01*4*8*0.125
=0.01*1*8+0.01*4*1
=0.08+0.04
=0.12

Answer 3

原式=0.08×（4×0.25+4×0.125）=0.08×（1+0.5）=0.08×1.5=0.12

Answer 4

0.32×(0.25+0.125)
=0.4×0.8×(0.25+0.125)
=0.4×0.8×0.25+0.4×0.8×0.125
=0.08+0.04
=0.12

Answer 5

0.32×(1/4+1/8)
=0.32×3/8
=0.32/8×3
=0.4×3
=0.12