Adding and Subtracting Rational Integers

Alfonzo started with $50.00 in his checking account. He recorded these transactions in his checkbook: -$12.75, -$5.43, $75.00, -$2.57, and -$22.25. What is his current balance after these transactions?

• $20

• $82

• $50

• $40

The high temperatures (in °F) for a 4-day holiday weekend were: -2.6, 16.7, -3.4, 6. Find the sum of the temperatures.

• 12.1

• 15.5

• 17.4

• 16.8

2.6 + (-3.7 - (-1.5))

• 3.5

• 2.5

• 0.4

• 1

45.16 - 72.5 + (-63.72) + 50

• -35.50

• 40

• -41.06

• 12.20

-18 + 3.4 + (-2.5)

• -17.1

• 16

• -10

• 5

-15.35 + 83.5 + (-16.98) + 1.8

• 12.2

• 52.97

• 13.5

• 10

Overnight, the temperature increased by 3 1/2 °F. The temperature began at -7.9 °F. What is the new temperature?

• -4.4

• -5.5

• 6.7

• 11.4

10.2 - (-2.14 - 4.9)

• 5

• 11

• 7.04

• 17.24

-5.5 - (12.36 - 8.3)

• 11.12

• -9.56

• 10.1

• 16.4

At dinner time, the temperature outside was -13.9 °F. The temperature decreased by 12.8 °F overnight. What was the new temperature?

• -1.1

• 1.1

• 26.7

• -26.7