1.-2/3+(-5/6)-(-1/9)-1/62.{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}
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1.-2/3+(-5/6)-(-1/9)-1/62.{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}1.-2/3+(-5/6)-(-1/9)-1/62.{1-(-1/4)}×{(-2)的三
1.-2/3+(-5/6)-(-1/9)-1/62.{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}
1.-2/3+(-5/6)-(-1/9)-1/6
2.{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}
1.-2/3+(-5/6)-(-1/9)-1/62.{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}
-2/3+(-5/6)-(-1/9)-1/6
= -2/3-5/6+1/9-1/6
= -12/18-15/18+2/18-3/18
= -28/18
= -14/9
{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}
=(1+1/4)*(-8+9)
=5/4*1
=5/4
1、原式 = -6/9 + 1/9 -(5/6+1/6)= -5/9 -1 = -14/9
2、原式 = 5/4 ×(-8+9)=5/4
1.= -2/3-5/6+1/9-1/6
= -2/3+1/9-1
= -5/9-1
= -14/9
2.=[1+1/4]*[-8+9]
=5/4*1
=5/4
不知对不对?
1/6、1/3、1/2( )、5/6、1.
1.-2/3+(-5/6)-(-1/9)-1/62.{1-(-1/4)}×{(-2)的三次方+(-3)的二次方}
横竖9个方格填1-9数字不能重复1.(5)()()(2)()()(7)(4)() 2.(1)()()()(7)(3)(6)()() 3.(2)()(9)()(4)()(3)()() 4.()(5)()(4
横竖9个方格填1-9数字不能重复1.(5)()()(2)()()(7)(4)() 2.(1)()()()(7)(3)(6)()() 3.(2)()(9)()(4)()(3)()() 4.()(5)()(4
1.(+15)+(-20)+(+28)+(-10)+(-5)+(-7) 2.(+2又3/4)+(-1又5/8)+(-5/6)+1/2 3.(-3又1/2)+(-2又1/9)+3.5+(-8/9)+1/2 4.(-1)+(+2)+(-3)+(+4)+.+(-41)+(+42)
1.(-5)+21x8/2-6-592.(-2)/9-7/9-563.(-2)x8-8x1/2+8/1/84.(-9)x5/6+5/65.1/2+3+5/6-7/12
[5/6-(1/2-1/3)]×9/10
七年级简便计算 要过程和结果1.(+15)+(-20)+(+28)+(-10)+(-5)+(-7)2.(+2又3/4)+(-1又5/8)+(-5/6)+1/23.(-3又1/2)+(-2又1/9)+3.5+(-8/9)+1/24.(-1)+(+2)+(-3)+(+4)+.+(-41)+(+4
9()2()7()8()()()()4()()9()6()1 3()5()()()()24()()8 5()()1()()8 9 4()1 6 7()()1()()3 6()()88()()()()2()3 6()5
初中有理数运算1.(3/1-6/5+9/7)/(-18/1)2.(-3又2/1)*(-4)
1.-70-28-(-19)+(+24)-(12)2.(+1/6)-(+1/3)-(-1/12)3.(+2又5/6)+(-3/8)+(1又1/3)+(-1/2)4.(-2/3)-1/12-(-1/4)5.-0.5-(-3又1/4)+2.75-(+7又1/2)6.(-4又7/9)-(-3又1/6)-(+2又2/9)+(-6又1/6)
数学计算题(3+5/9-2/3)×(1/6+1/9+1/12)-(1/6-1/9+1/12)×3+(1/6+1/9+1/12)×(2/3-5/9)谢谢来答
几道计算题,1.(-1)+2(-3)+4...+(-99)+1002.3+(-6)+6(-9)+9...+27+9-30)3.1+(-2)+(-3)+4+5+(-6)+(-7)+8+...+2004+2005+(-2006)+(-2007)+2008
(-4/9)+(+4/5)-(+5/6)-(+9/10)-(1又5/18) (+11)+(-1/2)+(+7)+(-1/6)+(+2)+(-1/3)
算24.(1)1、5、5、5(2)1、4、5、6(3)3、3、8、8(4)2、6、9、9(5)5、5、7、11(6)1、3、5、7
24点:(9、2、2、1) ( 3、2、7、9 )(4、4、6、6 )(2、5、2、8)( 3、5、3、8)
(2x+1)(3x-2)-6x(x-1)-5x+9
求解几道正负数混合运算题1.(-8)+10+2+(-1)=10+2+[(-8)+(-1)]2.5+(-6)+3+9+(-4)+(-7)=5+3+9+[(-6)+(-4)+(-7)3.(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5=1.2+0.8+3.5+[(-0.8)+(0.7)+(-2.1)]4.1/2+(-2/3)+4/5+(-1/2)+(-1/3)=