5,3,4,-2,12()

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5,3,4,-2,12()
(5/12+2/3-3/4)x(-12)

(5/12+2/3-3/4)x(-12)(5/12+2/3-3/4)x(-12)(5/12+2/3-3/4)x(-12)稍等

(5/12-5/16)*4/5+2/3

(5/12-5/16)*4/5+2/3(5/12-5/16)*4/5+2/3(5/12-5/16)*4/5+2/3(5/12-5/16)*4/5+2/3=5/192*4/5+2/3=1/48+2/3=

0.25+12/1+(-3/2)-4/1-12/5

0.25+12/1+(-3/2)-4/1-12/50.25+12/1+(-3/2)-4/1-12/50.25+12/1+(-3/2)-4/1-12/5=0.25+12-1.5-4-2.4=4.35

(-5/12)×4/15×(-3/2)×(-6)

(-5/12)×4/15×(-3/2)×(-6)(-5/12)×4/15×(-3/2)×(-6)(-5/12)×4/15×(-3/2)×(-6)(-5/12)×4/15×(-3/2)×(-6)=[(-

(-3/5)×(-12)+0.27×5/9+(-12)×(-2/5)+4/9×0.27=?

(-3/5)×(-12)+0.27×5/9+(-12)×(-2/5)+4/9×0.27=?(-3/5)×(-12)+0.27×5/9+(-12)×(-2/5)+4/9×0.27=?(-3/5)×(-1

(3/4+2/3)除以5/12

(3/4+2/3)除以5/12(3/4+2/3)除以5/12(3/4+2/3)除以5/12(3/4+2/3)除以5/12=17/12×12/5=17/5=3.4(3/4+2/3)除以5/12=(3/4

5/2÷[3/7×(4/3+7/12)]

5/2÷[3/7×(4/3+7/12)]5/2÷[3/7×(4/3+7/12)]5/2÷[3/7×(4/3+7/12)]70/23

4/3乘(x-5/2)=12

4/3乘(x-5/2)=124/3乘(x-5/2)=124/3乘(x-5/2)=124/3×(x-5/2)=12x-5/2=12×3/4x-5/2=9x=9+5/2x=23/2

5x-12>2(4x-3)

5x-12>2(4x-3)5x-12>2(4x-3)5x-12>2(4x-3)5x-12>2(4x-3)5x-12>8x-6-6>3xx

6-(1/2+3/4-5/12)?

6-(1/2+3/4-5/12)?6-(1/2+3/4-5/12)?6-(1/2+3/4-5/12)?5又1/6

2/17×34/5×4/3 12/5×5/2×6/5 (都要脱式的,)

2/17×34/5×4/312/5×5/2×6/5(都要脱式的,)2/17×34/5×4/312/5×5/2×6/5(都要脱式的,)2/17×34/5×4/312/5×5/2×6/5(都要脱式的,)2

5分之4+3分之2*(-12)/6+24-(-3)的平方/(-5)

5分之4+3分之2*(-12)/6+24-(-3)的平方/(-5)5分之4+3分之2*(-12)/6+24-(-3)的平方/(-5)5分之4+3分之2*(-12)/6+24-(-3)的平方/(-5)4

4/3×-()=2/5×()=12/7×()=5×()=1

4/3×-()=2/5×()=12/7×()=5×()=14/3×-()=2/5×()=12/7×()=5×()=14/3×-()=2/5×()=12/7×()=5×()=14/35/27/121/5

3/4*5/12除以2/5

3/4*5/12除以2/53/4*5/12除以2/53/4*5/12除以2/5=1/8

3-((2x-5)/3)>(3x+12)/4,解不等式

3-((2x-5)/3)>(3x+12)/4,解不等式3-((2x-5)/3)>(3x+12)/4,解不等式3-((2x-5)/3)>(3x+12)/4,解不等式两边乘1236-8x+20>9x+36

算24点:(1)1 5 9 12 (2)1 6 10 13 (3)2 4 8 11(4)3 5 12 12

算24点:(1)15912(2)161013(3)24811(4)351212算24点:(1)15912(2)161013(3)24811(4)351212算24点:(1)15912(2)161013

2(4x-3)/3<5(5x+12)/6

2(4x-3)/3<5(5x+12)/62(4x-3)/3<5(5x+12)/62(4x-3)/3<5(5x+12)/62(4x-3)/3<5(5x+12)/64(4x-3)<5(5x+12)16x-

(1)-12/3*(-7)-12/4*(-7)+12/5*7 (2)(-10^2)+[-4^2-(1-2^3)*2]

(1)-12/3*(-7)-12/4*(-7)+12/5*7(2)(-10^2)+[-4^2-(1-2^3)*2](1)-12/3*(-7)-12/4*(-7)+12/5*7(2)(-10^2)+[-

2,3,6,3,4,12,4,5,20,( ),( )说明理由

2,3,6,3,4,12,4,5,20,(),()说明理由2,3,6,3,4,12,4,5,20,(),()说明理由2,3,6,3,4,12,4,5,20,(),()说明理由5,6,30把6,12,2

2/5+(-3/5); (-1/3)+2/5 ; (-3又4分之1)+(-1又12分之1);

2/5+(-3/5);(-1/3)+2/5;(-3又4分之1)+(-1又12分之1);2/5+(-3/5);(-1/3)+2/5;(-3又4分之1)+(-1又12分之1);2/5+(-3/5);(-1