巧算：0.7470.25+0.530.025-2.5*0.

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/08/23 05:58:42

巧算：0.747*0.25+0.53*0.025-2.5*0.

0.747*0.25+0.53*0.025-2.5*0.04
=0.747×0.25+0.053×0.25-0.25×0.4
=0.25×（0.747+0.053-0.4）
=0.25×0.4
=1/4×0.4
=0.1

巧算：0.747*0.25+0.53*0.025-2.5*0. 0.747*0.25+0.53*0.025-2.5*0.04 1/2.5-0.25/1+0.25 巧算简便计算：（2.5+0.25+0.025）*4 百分之2.5是不是0.25还是0.025 3.2×(1.25+0.25)巧算 0.25*0.64*1.25巧算 9.6*0.25*12.5巧算 3.4／0.25巧算 2.5*4.8*0.125巧算 13.8除以2.5巧算 3.06除以2.5巧算