简算(1)4×0.8×1.25×0.25 (2)(1/2+1/3+1/4+1/5)×60
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简算(1)4×0.8×1.25×0.25 (2)(1/2+1/3+1/4+1/5)×60
4×0.8×1.25×0.25
=4x0.25x0.8x1.25
=1x1
=1
(1/2+1/3+1/4+1/5)×60
=1/2x60+1/3x60+1/4x60+1/5x60
=30+20+15+12
=77
=4x0.25x0.8x1.25
=1x1
=1
(1/2+1/3+1/4+1/5)×60
=1/2x60+1/3x60+1/4x60+1/5x60
=30+20+15+12
=77
简算,(3/1-0.25)/2/1+6/5
简算:(1+1/3+1/5+1/10+1/15+1/30)÷(1/2+1/4+1/6+1/12+1/20+1/60)=?
简算:(0.8+1/125)×5/4
138又4分之1+23.3*(2-4分之3)-1.25*38+(1+0.25)*28.7
【1-(1\4+3\8)】÷1\4简算 4\5÷[(1\3+2\5)*4\11]简算
4/15×(1/2+0.8÷8/7)简算
(0.8+1/4)÷3/5+0.25 求简算
0.25^(-1)*(根号3/2)^(1/2)*(27/4)^(1/4)+log2(1/5)*log3(1/8)*log
(1+1/2+1/3+...+1/60)+(2/3+2/4+...+2/60)+(3/4+3/5+...+3/60)+.
帮我计算几道题 能筒算的要筒算 12*(1/2+1/3-1/4)4*0.8*0.25*12.5
初中计算(-2)^4/(-2 2/3)^2+(5 1/2)*(-1/6)-0.25
计算:(-2/3)+(0.25)+(-1/6)-(+1/2)=?(3又3/5)+(+4又3/4)-(+1又2/5)+(-