Adding
Subtracting
Mix It Up
Challenge
Word Problems
100

-1 + (-3)

-4

100

4 - 7

-3

100

Additive Inverse of 8

-8

100

-8 + 2 - 9

-15

100

Anna deposited $20 into her bank account. The next day, she withdrew $30. Write a number sentence that represents the change in her account.

20 + -30 

or

20 - 30

200

-4 + (-8)

-12

200

-11 - 9

-20

200

Additive Inverse of -2

2

200

15 - 27 - (-3)

-9

200

Zac is playing a game. He started with 15 points. In the first round he lost 20 points. In the next round, he won 10 points. Write a number sentence that represents the change in his score.

15 - 20 + 10

or

15 + -20 + 10

300

5 + (-14)

-9

300

-16 - 3

-19

300

What is another way to write -10 + -3 ?

-10 - 3

300

9 - (-43) - 12

40

300

A submarine's elevation is -12 feet relative to sea level. A shark is swimming at an elevation of -32 feet. What is the difference in elevation between the submarine and the shark?

20 feet

400

-7 + 12

5

400

-27 - (-2)

-25

400

What is another way to write 5 - 7 ?

5 + -7

400

-15 + 90 - (-8)

83

400

Mike scored 14 points in the first round of a game. He then lost 22 points in the second round. In the final round he earned 17 points. What was Mike's score at the end of the game?

9

500

-8 + 10 + (-7)

-5

500

2 - 5 - (-6)

3

500

Which has the greatest value?

A. -5 + -1 - (-3)

B. -5 - (-1) - (-3)

C. -5 + -1 - 3

B

500

2 - 20 + 35 - 27

-10

500

Lily deposited $300 into her bank account. A couple of days later she withdrew $70. The next day, she deposited $15 more. A day later, she withdrew $200. 

Write an expression that represents the change in Lily's bank account balance AND find what the change was.

300 - 70 + 15 - 200

or

300 + -70 + 15 + -200

$45