作业帮[96.3加4.1]乘0.25简便计算
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/10 08:32:59
0.12*2.5+0.25*8.8=1.2*0.25+8.8*0.25=0.25*(1.2+8.8)=0.25*10=2.5
x+0.5x=3.6*0.251.5x=0.9x=0.9÷1.5x=0.6不懂的欢迎追问》.
（-36)×200又7/18=(-36)×(200+7/18)=-7200--14=-7214（-270)×四分之一+0.25×21.5+（-8又二分之一）×（-25%）=(-270)×1/4+1/4
18.2*0.25+18.2*65%+18.2*1/10=18.2*（0.25+65%+1/10）=18.2*1=18.2
0.25x39+3/4x25+26/4x3/13=1/4x39+1/4x3x25+1/4x26x3/13=1/4x(39+75+6)=1/4x120=30
5.23乘4加4.77除以0.25=5.23×4+4.77×4=（5.23+4.77）×4=10×4=40
3.64÷4+4.36×0.25=3.64×1/4+4.36×0.25=3.64×0.25+4.36×0.25=0.25×（3.64+4.36）=0.25×8=2
①0.25×（10+0.4）=0.25×10+0.25×0.4=2.5+0.1=2.6②8.5×9.9=8.5×(10-0.1)=8.5×10-8.5×0.1=85-0.85=84.15③13.5×4
0.25乘39加0.25=0.25*(39+1)=10
38乘四分之一+17乘0.25加45乘25％＝38×0.25＋17×0.25＋45×0.25＝（38＋17＋45）×0.25＝100×0.25＝25
(1.6乘4)乘0.25加3.6除4=1.6乘4乘0.25加0.9=1.6乘1加0.9=1.6+0.9=2.5
370/4+24.5/4+5.5/4=（370+24.5+5.5）/4=100
因为4分之一=0.25=25%原式=（39+27+34)×0.25=[（39+1)+(27+33)]×0.25=100×0.25=25
25%×42+25%×58=25%×（42+58）=25%×100=25
2.38*4.1+5.9*2.38=2.38*（4.1+5.9）=2.38*10=23.8
2.5*0.875+0.25*1.25=2.5*0.875+2.5*1.25/10=2.5*(0.875+1.25/10)=2.5*(0.875+0.125)=2.5请参考.
0.25*19+0.25*3*25=0.25*94=0.25*100-0.25*6=23.5
1.26×0.25+8.74×¼=(1.26+8.74)×0.25=10×0.25=2.5