(1)6.3-6.3*12.5%=5.5125 (2)1/3x-28=25%X X =336
[1(1/4+3/8)]/1/4 105*3/4+207*0.75-112/1 1/3
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相关问题
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3.84:2.4=x:1/4 x:0.75=20.25:1/8 3.6:4/3=1.8:x x:0.75=2:1.25
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-5-[-4+(1-0.25*4/3#1/3)#(-0.75)]
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简便运算:(1)1[1/2]-1[1/4]+3[3/4]-0.25-3.75-4.5;
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[1/2]-[1/6]= [3/5]+[4/5]= [3/4]+[1/5]= 12-[3/8]= 1[3/4]÷1.75
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0.75+14/1/9+3/4*1/8/9-12*0.75
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1.(-2 3/4)+(+12 5/7)+(-4.125)+(+0.75)+(+1/8);
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(1),(+1.25)+(-1/2)+(-3/4)+(+1又3/4) (2),(-0.5)-(3又1/4)+2.75-(
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1.75-(-3/8)+(0.5)-(-5/6) +4又2/3)-1/8
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计算(1)1.3× 1 4 - 1 2 ×0.25+0.2÷4(2)[( 1 1 3 - 8 15 ) ×75%+ 1
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直接写得数1-20%= 0.5+0.75= 1 4 ÷4= 2 3 × 3 4 = 1 3 - 1 4 = 0.1÷0.