Represent Integer Operations

The circles in the model represent positive and negative units.

Which equation is true based on the model?

• -3 + (-7) = -10

• -3 + 7 = 4

• 3 + (-7) = -4

• -3 + 7 = -4

Tags

CCSS.7.NS.A.1C

Lilly is playing a card game. She chooses four cards. The value of her four cards are -10, 4, -8, and 2.

What is the sum of the values of Lilly's four cards?

• 24

• -24

• 12

• -12

Tags

CCSS.7.NS.A.1C

Which expression is represented on the number line?

• 0 - (-9)

• -3 • 3

• -3 + (-9)

Tags

CCSS.7.NS.A.1B

Sam spent $5 on a large soda and bought 3 hotdogs for $2 each. She used her debit card to pay for the soda and hotdogs. The expression below is used to represent the change in the balance of Sam's checking account. (-5) + 3(-2) Write the integer that represents the change in the balance of Sam's checking account from these purchases.

Tags

CCSS.7.NS.A.3

Match the following

• 12

• -16 +4

• 3

• -2 + 10

• 8

• 5 - (-7)

• -8

• 10 + (-7)

• -12

• -4 - 4

Tags

CCSS.7.NS.A.1B

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

• subtract, positive

• -1239 + 904

• add, positive

• 3 + 5

• add, negative

• -717 + 927

• subtract, negative

• -762 + (-481)

Tags

CCSS.7.NS.A.1D

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

Tags

CCSS.7.NS.A.3

Tony had -15 dollars in his bank account. He deposited 45 dollars into his account. How much money, in dollars, does he now have in his bank account?

Tags

CCSS.7.NS.A.1C

-5 - (- 3)

• -8

• 8

• -2

• 15

Tags

CCSS.7.NS.A.1C

12 - (-12)

• 24

• -24

• 0

• -144

Tags

CCSS.7.NS.A.1C