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Miscellaneous
Using addition
Using subtraction
Using multiplication
Using division
100

Inverse operation of addition is 

subtraction

100

r-1<2

r<3


100

x+12 ≤ 9

                                   


    

x ≤ -3

100

x/3 > 8

x > 24

100

3

x>8

200

Inverse operation of subtraction is 

addition

200

n-2.5>0 

n>2.5

200

r – (–5) > –2

                                   


    

r > -7

200

z/7 > 8

z > 56

200

2c > 4

c > 2

300

Inverse operation of multiplication is 

division

300

–8 ≥ x – 15


    

7≥ x OR x≤7

300

1.5 < y + 1

                                   


    

.5 < y OR y > 0.5

300

z/3 > -9

z > -27

300

7c ≤ 21

c ≤ 3

400

Inverse operation of division is 

multiplication

400

Twelve is at most a number decreased by 7.    

n≤19

400

The sum of a number and 17 is no less than 26.

                                   


    

n < 9

400

-z/5 > 2

z < -10

400

-10d ≤ 20

d≥-2

500

Name these symbols: 

1) <  

2) >

3) ≤

4) ≥


1) less than 

2) greater than 

3) less than or equal to 

4) greater than or equal to

500

z - 3 < 2/3

z < 11/3 

500

z + 5 < 1/4

z < - 19/4

500

-x/6 < 7

x > -42

500

-c ≥ -100

c ≤ 100