Multiplying Rational Numbers
Dividing Rational Numbers
Cumulative Practice
Converting Between Fractions/Decimals
Word Problems
100
10(-7)
-70
100
(-42)/-6
7
100
-5 + -7
-12
100
Write the decimal as a fraction
-0.6
-6/10 or -3/5
100
You and a group of friends participate in a game where you must use clues to escape from a room. You have a limited amount of time to escape and are allowed 3 free clues. Additional clues may be requested, but each removes 5 minutes from your remaining time. What integer represents the total change in the time when you use 5 clues?
-10
200
-43
-4 to the third power
-64
200
Find the mean of the following integers.
-3, -8, 12, -15, 9
-1
200
-1 1/2 - (-1 3/4)
1/4
200
Write the decimal as a fraction
-5.8
-5 8/10 or -5 4/5 or -29/5
200
A driver receives −25 points for each rule violation. What integer represents the change in points after 4 rule violations?
-100
300
-4/9 xx 7/8
-28/72 or -14/36 or -7/18
300
-4/11 -: 2/7
-28/22 or -14/11 or -1 3/11
300
What is the value of the expression when q = -2, r = -12 and s = 8
(-q^2 - r)/s
1
300
Write the number as a decimal.
5/8
0.625
300
Two integers, a and b, have a product of −33. What is the least possible sum of a and b?
-11 and 3
400
4.5(-5.26)
-23.67
400
-23.8 -: 5.6
-4.25
400
G
400
Write the number as a decimal.
-8/15
-0.5bar3
400
A school record for the 40-meter dash is 15.24 seconds. Predict the school record after 15 years when the school record decreases by about 0.06 second per year.
14.34 seconds.
500
Evaluate the expresion when x = 5 y = -3 and z = -2
(x-5z)/y
-5
500
-1 5/6 -: 4 1/6
-44/100 or -22/50 or -11/25
500
C. 1
500
Write the mixed number as a decimal.
1 7/16
1.4375
500
A restaurant launches a mobile app that allows customers to rate their food on a scale from −5 to 5. So far, customers have given the lasagna scores of 2.25, −3.5, 0, −4.5, 1.75, −1, 3.5, and −2.5. Should the restaurant consider changing the recipe? What is the mean score of the lasagna.
The mean score is -4/8 or -0.5