Integer Operations

What is the difference?

To reverse the effect of subtraction, you must...

• subtract

• multiply

• divide

• add

Jason stopped at the grocery store on his way home from work. He used his debit card to purchase 2 salads for $7 each, 3 bottles of soda for $2 each, and a sandwich for $8. The change in the balance of Jason's checking account is represented by the expression below. What integer represents the change in the balance of Jason's checking account? Enter your answer in the box.

Mathematical Equivalence

ON

Match the following with the correct operation and sign of the answer.

• add, positive

• 3 + 5

• subtract, negative

• -1239 + 904

• add, negative

• -717 + 927

• subtract, positive

• -762 + (-481)

Match the following

• -8

• -7 + (-1)

• 13

• 1 - 5

• 1

• -4 - (-6)

• 2

• 8 - (-5)

• -4

• 10 - 9

Match

• 3

• -3 + 14

• -216

• 24 - (-5)

• 29

• -7 - (-10)

• 11

• 18 + (-6)

• 12

• 72(-3)

If I am subtracting integers, I need to change the problem to addition by ​ ​ (a)   ​ the ​ (b)   ​

• opposite

• subtracting

• same sign

• adding

What is the inverse operation of MULTIPLICATION?

• Addition

• Subtraction

• Multiplication

• Division

Choose the properties of the following operations

(3+2)+ 20=3+(2+20)

• identity

• associative

Choose the properties of the following operations

2. (45+0)+(1x50)=(35+0)+(1x43)

• identity/zero

• associative