Positive and Negative Numbers

Theo had a balance of -$4 in his savings account. After making a deposit, he has $25 in his account. What is the overall change to his account?

• $29

• $25

• $24

• $30

3 + (-12) + 6

• 21

• -3

• 3

• -15

-6 + 9 + 6

• 9

• -9

• 3

• 21

Which of the following expressions is represented on the number line below?

• -6 + (-3)

• -9 + (-3)

• -9 + 3

• -6 + 3

Evaluate and write your solution in simplest form.
-5⁄6 - (-2/3)

• -3⁄2

• 7⁄3

• -1⁄6

• 3⁄2

The temperature outside is 10°F. Which of the following temperatures would make the sum of the two temperatures 0°F?

• -10°F

• 0°F

• 10°F

The highest point in your hometown is 12 feet. The lowest point is -5 feet. What is the difference in feet between the highest and lowest elevation points?

• 0 feet

• -7 feet

• 7 feet

• 17 feet

Solve the problem. HINT: the subtraction makes the second fraction negative.

Rules:

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number

Solve. Rules

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number

Solve. Rules:

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number