0.46*2.5+6.4*0.25-0.25 简便,
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0.46*2.5+6.4*0.25-0.25 简便,
0.46*2.5+6.4*0.25-0.25 简便,
0.46*2.5+6.4*0.25-0.25 简便,
0.46*2.5+6.4*0.25-0.25
=4.6*0.25+6.4*0.25-0.25
=(4.6+6.4-1)*0.25
=10*0.25
=2.5
0.46*2.5+6.4*0.25-0.25 简便,
巧算:0.747*0.25+0.53*0.025-2.5*0.
(6.4+6.4+6.4+6.4)*0.25简便算法
2.5 6.4.
2.3/0.46/2.5简便计算
6.4+0.74+3.7+0.
0.747*0.25+0.53*0.025-2.5*0.04巧算:0.747*.25+0.53*0.025-2.5*0.
简便计算 99*2.5+2.5 6.4*4.5+3.6*4.5 6.25/0.25+0.75 99*2.5+2.5 42.5+24.4/16 0.8*(13-2.53/18)
x-0.46x=0.列方程
6.4×2.5简便计算?
2.5*1.25*6.4巧算
1.25×6.4×2.5
1.25×6.4×0.25简便计算.
4.6×0.75+0.46×2.5的简便运算
6.4×2.5×1.25简便计算
简便计算.12.5×8.7 12.5×8.8 0.简便计算.12.5×8.7 12.5×8.80.32×32×1.25 0.25×4.812×2.5
0.25*78+22*2.5
4.5×2.5+0.25×55