Name:    Adding and Subtracting Rational Numbers

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

Which sum is -3.7?
 a. -6.9 + 3.2 b. -4.5 + (-1.3) c. 5.2 + (-1.5) d. -7.4 + (-4.3)

2.

Which sum is +17.3?
 a. (-12.8) + (-4.5) c. (-3.4) + 20.7 b. 24.5 + (-6.3) d. (-18.2) + (1.5)

3.

Which difference is +9.4?
 a. 10.3 - (-1.4) c. (-16.3) - (-5.5) b. (-3.1) - (-12.5) d. 7.3 - 15.7

4.

Which difference is +0.8?
 a. (-3.5) - 4.1 b. 2.5 - (-0.3) c. 7.6 - 6.8 d. (-1.4) - (-0.3)

5.

Margaret takes h to complete her English assignment and h to complete her math assignment. How much longer does it take Margaret to complete her English assignment than her math assignment?
 a. 45 min b. h c. h d. 35 min

6.

Jesse takes h to drive from home to his cottage and h to drive back home. How much time does it take Jesse to travel to and from home?
 a. 4 h and 5 min c. 3 h and 55 min b. h d. h

7.

 a. 0.3 b. c. d. -1.3

8.

 a. 2.95 b. c. d. -4.225

9.

If x = -12.6 and y = 37.3, evaluate x - y.
 a. 24.7 b. -25 c. -26.1 d. -49.9

10.

If x = -9.3 and y = -2.6 evaluate x + y.
 a. -11.9 b. 5.8 c. -6.7 d. 7.3