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【1%(1/2%1/4)】*2/3=?列算式!! 20000÷12.5÷2...

(1)原式=51÷17+ × =3 (2)原式=19.9×(1+99) =1990 (3)原式=(1000-1)×1999 =1997001 (4)原式 = × = (5)原式=20000÷(12.5×0.8×25×4) =20 (6)原式=(38+17+45)×0.25 =25 (7)原式=2.78×(7.8+3.2-1) =27.8

12÷(5分之3+3分之2)=? =12÷(9/15+10/15) =12×15/19 =180/19; 12÷【5分之3×(3分之4-1)】=? =12÷(3/5×(1/3)) =12÷(1/5) =60; 您好,很高兴为您解答,skyhunter002为您答疑解惑 如果本题有什么不明白可以追问,如果满意记得采纳 如果有其他问题...

5/7÷(-2又2/5)-5/7×5/12-5/3÷4 =5/7÷(-12/5)-5/7×5/12-5/3×1/4 =5/7×(-5/12)-5/7×5/12-5/12 =-5/12×(5/7+5/7+1) =-5/12×17/7 =-85/84 [-(2^4)]-[(-2)^4]+[(-1)^101]-[(-1)^107] =(-16)-16+(-1)-(-1) =-16-16-1+1 =-32

7/16×11/14÷11/12 =11/32*12/11 =12/32 =3/8 8/9÷[(2/5+1/10)×4/3] =8/9÷(2/5*4/3+1/10*4/3) =8/9÷(8/15+2/15) =8/9÷10/15 =8/9*15/10 =4/3

一、解: 1、x=7/15÷3/5=7/15*5/3=7/9 2、x=11/15*11=121/15 3、8/21x=2/3 x=2/3*21/8=7/4 4、4χ=5/12-1/4 x=1/24 5、1/2χ=24*1/3 x=16 6、13/12x=4/5 x=48/65 二、1.选B 2.条件不足 3.条件不足,不做了

你猜你猜对了我就告诉你

5/8*1/2*4/5=1/4 2/3÷4/9*3/10 =2/3x9/4x3/10 =9/20 5/6*4/5÷1/2 =5/6x4/5x2 =4/3 (3/4-5/12)*24 = 3/4x24-5/12x24 =18-10 =8 (1/2+1/6)÷1/12 =1/2x12+1/6x12 =6+2 =8

(1)1.3×0.2=0.26, (2)0.4÷8=0.05, (3)3.2-2.9=0.3, (4)0.24×3=0.72, (5)12.5+0.5=13, (6)0.25×4=1, (7)12.5×0.8=10, (8)1.3×30=39, (9)2-0.98=1.02, (10)8.4+3=11.4.

(1)0.36+0.4=0.76,(2)12.5×32×2.5=1000,(3)1÷0.9= 10 9 ,(4)8×(12+0.5)=100,(5)9- 5 9 + 4 9 =8 8 9 ,(6) 5 8 ÷ 8 5 = 25 64 ,(7) 1 3 - 1 4 = 1 12 ,(8)1÷ 2 3 = 3 2 ,(9)5 1 8 +0.8=5.925,(10)6+6- 9 2 =7.5.

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