一点二五乘零点七乘零点八简便算
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5/8×0.8+11/8÷1.25=5/8×4/5+11/8÷10/8=1/2+11/8×8/10=1/2+11/10=1.6
再答:25变成2.5提出来了,所以0.3变成了3再答:发几个吧再问:再答:对再答:
99.99x0.8+11.11x1.8=99.99x0.8+11.11x(1+0.8)=99.99x0.8+11.11+11.11x0.8=0.8x(99.99+11.11)+11.11=0.8x11
5.4*1.25+1.25/3.2-0.6*1.25=1.25(5.4+3.2-0.6)=1.25*8=10
1.25*0.25*0.32=1.25*0.25*0.8*0.4=(1.25*0.8)*(0.25*0.4)=1*0.1=0.1
八又五分之三=8.6八又五分之三乘二点七加六十二乘零点一四加三十五成零点八六=8.6×2.7+62×0.14+35×0.86=8.6×2.7+35×0.86+62×0.14=0.86×2.7+35×0
(0.14×0.48×1.5)/(0.05×0.12×0.07)=(0.14/0.07)×(0.48/0.12)×(1.5/0.05)=20×4×30=2400
再问:看不清再答:再问:加载不起写字嘛!再答:6×12.4×0.7=6×(12+0.4)×0.7=50.4+7.68=52.08
原式=(12/7×7/8+13/5÷4/5)÷19/8=(12/7×7/8+13/5×5/4)×8/19=12/7×7/8×8/19+13/5×5/4×8/19=12/19+26/19=38/19=2
0.36x7.5+0.036x25=0.036x75+0.036x25=0.036x(75+25)=0.036x100=3.6
1/4*1/7+0.25*1/7+1/2/7=1/4*1/7+1/4*1/7+1/2*1/7=(1/4+1/4+1/2)*1/7=1/7
0.8乘(0.2+0.05)=0.8乘0.2+0.8乘0.05=0.16+0.4=0.56
八分之五乘四分之一加四分之一除以三分之八加零点二五=5/8x1/4+1/4x3/8+1/4=1/4x(5/8+3/8+1)=1/4x2=1/2再问:1/8*25%÷1/8*25%再答:1/8*25%÷
原式=0.7*(3/11)-6.6*(3/7)-1.1*(3/7)+0.7*(8/11)=0.7*(3/11+8/11)-(3/7)*(6.6-1.1)=0.7*1-(3/7)*5.5=0.7-33/
0.75+1又5/8-3/4+0.375=(0.75-3/4)+(1又5/8+0.375)=0+2=2再问:115—-—-3.5=2.5怎么解?xx再答:11/x-5/x-3.5=2.511/x-5/
0.8*0.125*5.4=0.1*5.4=0.54
零点六八减零点三在加!
(1.2x0.5)x1.38