Current location - Training Enrollment Network - Mathematics courses - There are 30 ways to add, subtract, multiply and divide the power fraction,,, and 3Q in the mixed operation of rational numbers in the first volume of the seventh grade.
There are 30 ways to add, subtract, multiply and divide the power fraction,,, and 3Q in the mixed operation of rational numbers in the first volume of the seventh grade.
(-5)-(+3)+(-9)-(-7)

(-5)+(+8)-(+2)-(-3)

5-(-3 )-(+7)-2

(-2 1)+(+ 16)-(- 13)-(+7)+(-6)

2 -(- )+(-0.5)+(+2)-(+ )-2

(-7)-(+5)+(+3)-(-9)

-(+2 )-(- 1 )-(+3 )

- 14 5 (-3)=- 12

- 12 (-7) (-5) (-6)

23.33-(+76.76)

(-6-24.3)-(- 12+9. 1)+(0-2. 1)

6+(7-8)

(-78)+25+26+27

(-3)+(-2)+(- 1)

39+28+26- 125

[2/3-4- 1/4+(-0.4)]+ 1/3+2

22+(-4)+(-2)+4-3

(-2)+7-(- 16)-(-3)

(-5)-(+3)+(-9)-(-7)

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

2/3+(- 1/2)-(- 1/3)+ 1/4

(-5)+(-8)-(-2)-3

(-2 1)+(+ 16)-(- 13)-(+7)+(-6)

(-2/3)+(- 1/3)+3/4+(- 1/4)

(-0.73)+(-0.62)-(+0.75)

(- 19)+(- 1 1)-(-33)+27

(-6.4)+(-3.6)-(- 12.5)+4.5

(-8 1)+(- 19)-27+33

(-3.2)-(-6.2)+(-5. 1)+(-4.9)

(-6.9)+(-3. 1)+(+2.7)+(-2. 1)

39+[-23]+0+[- 16]=

[- 18]+29+[-52]+60=

[-3]+[-2]+[- 1]+0+ 1+2=

[-30 1]+ 125+30 1+[-75]=

[- 1]+[- 1/2]+3/4+[- 1/4]=

[-7/2]+5/6+[-0.5]+4/5+ 19/6=

[-26.54]+[-6. 14]+ 18.54+6. 14=

1. 125+[- 17/5]+[- 1/8]+[-0.6]=

[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

5+2 1*8/2-6-59

68/2 1-8- 1 1*8+6 1

-2/9-7/9-56

4.6-(-3/4+ 1.6-4-3/4)

1/2+3+5/6-7/ 12