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Math rational number addition and subtraction problem (with negative number) in the first day of junior high school.
Seventh grade rational number calculation problem

Rational number addition

(-9)+(- 13) (- 12)+27 (-28)+(-34) 67+(-92) (-27.8)+43.9

(-23)+7+(- 152)+65 |+(-)| (-)+|―|

38+(-22)+(+62)+(-78) (-8)+(- 10)+2+(- 1) (-)+0+(+)+(-)+(-)

(-8)+47+ 18+(-27) (-5)+2 1+(-95)+29 (-8.25)+8.25+(-0.25)+(-5.75)+(-7.5)

6+(-7)+(9)+2 72+65+(- 105)+(-28) (-23)+|-63|+|-37|+(-77)

19+(- 195)+47 (+ 18)+(-32)+(- 16)+(+26) (-0.8)+(- 1.2)+(-0.6)+(-2.4)

(-8)+(-3)+2+(-)+ 12 5+(-5)+4+(-) (-6.37)+(-3)+6.37+2.75

Rational number subtraction

7-9 ―7―9 0-(-9) (-25)-(- 13) 8.2―(―6.3)

(-3)-5 (- 12.5)-(-7.5) (-26)―(- 12)― 12― 18 ― 1―(-)―(+)

(-20)-(+5)-(-5)-(- 12) (-23)―(-59)―(-3.5) |-32|―(- 12)―72―(-5)

(-)―(-)― (+)―(-)―(-)― (-)―3―(-3.2)―7

(+)―(-)― (+6. 1)―(-4.3)―(-2. 1)―5. 1 (-)―(- 1)―(- 1)―(+ 1.75)

(-3)―(-2)―(- 1)―(- 1.75) -8-5+4-3 -4++(-)―

0.5+(-)-(-2.75)+ (+4.3)-(-4)+(-2.3)-(+4) (-0.5)-(-3)+6.75-5

Rational number multiplication

(-9)× (-)×(-0.26) (-2)×3 1×(-0.5)

×(-5)+×(- 13) (-4)×(- 10)×0.5×(-3) (-)××(- 1.8)

(-0.25)×(-)×4×(-7) (-)×(-)×(-) (-8)×4×(-)×(-0.75)

4×(-96)×(-0.25)× (- 1+)×56 (――)×36

(-36)×(+-) (-)×(8 - 0.4) (-66)×〔 1-(-)+(-)〕

25×-(-25)×+25× (+-+)×72 ×(2-)×(-)×(-)

Rational number division

18÷(-3) (-24)÷6 (-57)÷(-3) (-)÷ (-42)÷(-6)

(+)÷(-) (-)÷9 0.25÷(-) -36÷(- 1)÷(-) (- 1)÷(-4)÷

3÷(-)×(-) 0÷[(-3)×(-7)] -3÷(-) (-24)÷(-6)

2÷(5- 18)× 1÷(-3)×(-) -×(-)÷(-) (-)÷(-)

(-+)÷(-) -3.5 ×(-0.5)×÷ - 1÷(- 1)× 1×(-7)

×( - )÷ ÷(-2)-×-÷4 0.8×+4.8×(-)-2.2÷+0.8×

Five, rational number mixed operation

(-)×(- 15×4) (-2.4) 2÷(-)×÷(-5)

[ 15-( 1÷ 1+3]÷(- 1) ×(-5)÷(-)×5 -(-+-)÷(-)

- 13×-0.34×+×(- 13)-×0.34 8-(-25)÷(-5) (- 13)×(- 134)××(-)

(-4)-(-5)+(-4)-3 (- 16-50+3)÷(-2) (-0.5)-(-3)+6.75-5

178-87.2 1+43+53- 12.79 (-6)×(-4)+(-32)÷(-8)-3 - (-)+|- 1|

(-9)×(-4)+ (-60)÷ 12 [(-)- 1+]÷(-) -|-3|÷ 10-(- 15)×

- 1×(-)÷2 (2-3+ 1)÷(- 1)×(-7) -×(8-2-0.04)

-2× - - -2× ÷

× + ×× ×-

++ -×- -+

0-÷3× ×÷ -×-÷

×(-+ 1) ×0 6+× - 10+8÷-4×3

- -( 1-0.5)× ××

4×+6 ××× -+2×+(-6)÷

÷(-8)-×(-) ×()×

-2[-3×]÷ ÷9÷ 36×

-{} -+( 1-0.5)××[2×]

-4×+ - +×÷