Perform the indicated operations.

1. (+1) + (+2) = 6. (-2) – (+9) =

2. (-10) + (-2) = 7. (0) – (-20 =

3. (-7) + (-3) = 8. (-10) – (-10) =

4. (+14) + (-2) = 9. (+25) – (-8) =

5. (-25) + (-32) = 10. (-5) – (-16) =

II. Perform the indicated operation

1. [ 4 ( - 3) x (-5) ÷ 2 ] x 10 =

2. [ ( -18 ÷ - 9 ) x 3] [ -125 ÷ (10 ÷ 2)] =

3. 2 [(11 x 6)] ÷ ( 27 ÷ 3 ) =

III. Find the missing integer.

1. (+8) + ( ) = -4 6. (+4) x ( ) = -9

2. (-10) +( ) = - 4 7. (-16) x ( ) =80

3. ( ) – (+10) = 0 8. (-72) ÷ (+12) =0

4. (+7) – (-3) = 9. (+9) x ( ) x (- 4) = -144

5. (+12) – (+4) + ( ) =16 10 (-72) ÷ (-8) ÷ ( ) = +1​