Adding Integers (A)

Abigail has 15 apples and buys 5 more. How many apples does she have in total? (+15) + (+5) = ___

• 20

• 18

• 25

• 10

Answer explanation

To solve (+15) + (+5), simply add the two positive integers: 15 + 5 = 20. Therefore, the correct answer is 20.

Tags

CCSS.7.NS.A.1C

Use an integer strategy to find the answer: (-25) + (-20) = (a)  

• -45
• -40
• -50
• -30

Answer explanation

To solve (-25) + (-20), add the absolute values: 25 + 20 = 45. Since both numbers are negative, the result is -45. Thus, the correct answer is -45.

Tags

CCSS.7.NS.A.1C

Use an integer strategy to find the answer: (-18) + (+2) = (a)  

• -16
• -20
• -15
• -17

Answer explanation

To solve (-18) + (+2), add the numbers: -18 + 2 = -16. The correct answer is -16.

Tags

CCSS.7.NS.A.1C

Daniel has $10 and spends $20. How much money does he have now? (+10) + (-20) = ___

• -10

• 0

• 10

• 20

Answer explanation

To solve (+10) + (-20), start with +10 and then subtract 20. This results in 10 - 20 = -10. Therefore, the correct answer is -10.

Tags

CCSS.7.NS.A.1C

Olivia found $14 in her pocket and then realized she lost $14 from her wallet. How much money does she have now?

• 0

• 28

• -28

• 14

Answer explanation

To solve (+14) + (-14), we add 14 and -14. Since they are equal in magnitude but opposite in sign, they cancel each other out, resulting in 0. Therefore, the correct answer is 0.

Tags

CCSS.7.NS.A.3

Match the following integer operations with their results.

• (+13) + (-17) = ______.

• 4

• (+5) + (-5) = ______.

• -3

• (+7) + (-10) = ______.

• -4

• (+10) - (+6) = ______.

• 0

Answer explanation

To solve (+13) + (-17), combine the numbers: 13 - 17 = -4. Thus, the answer is -4.

Tags

CCSS.7.NS.A.1B

Elijah owes $17 and pays back $13. How much does he still owe? (-17) + (+13) = ______.

• -4

• -3

• 0

• 4

Answer explanation

To solve (-17) + (+13), combine the numbers. Start at -17 and move 13 units towards zero. This results in -4, as -17 + 13 = -4. Therefore, the correct answer is -4.

Tags

CCSS.7.NS.A.1C

Use an integer strategy to find each answer. (-23) + (-10) = ______.

• -33

• -13

• -43

• -30

Answer explanation

To solve (-23) + (-10), add the absolute values: 23 + 10 = 33. Since both numbers are negative, the result is -33. Thus, the correct answer is -33.

Tags

CCSS.7.NS.A.1C

Use an integer strategy to find the answer: (-9) + (+18) = (a)  

• 9
• 7
• 11
• 5

Answer explanation

To solve (-9) + (+18), add the positive and negative integers. Start with 18 and subtract 9: 18 - 9 = 9. Therefore, the answer is 9.

Tags

CCSS.7.NS.A.1C

Match the following expressions with their results.

• (-10) + (+10) = ______

• 15

• (-10) + (+20) = ______

• 10

• (-5) + (+10) = ______

• 0

• (-5) + (+20) = ______

• 5

Answer explanation

To solve (-10) + (+20), start at -10 on the number line and move 20 units to the right. This brings you to 10. Therefore, the answer is 10.

Tags

CCSS.7.NS.A.1C