Rational Numbers
Add Rational Numbers
Subtract Rational Numbers
Multiply Rational Numbers
Divide Rational Numbers
Operations with Rational Numbers
100
Which of the following numbers are repeating decimals?
1/2, 112.56, 3.bar451, 2/3
3.bar451, 2/3
100
Find -1/4+4 3/4
4 2/4 or 4 1/2 or 4.5
100
-3.17-(-11.1)
7.93
100
-3/7(-4/5)
12/35
100
-4/5div7/10
-1 1/7
100
Evaluate
1/2(x+y) when x=1.5 and
y=-1/2
0.5 or
1/2
200
Which of the following best describes a fraction that can be written as a decimal using bar notation?
A) integer
B) decimal
C) repeating decimal
D) terminating decimal
C) repeating decimal
200
What is the additive inverse of the total amount of feet?
-2.95
200
-3 2/5-1.4
Express your answer as a decimal.
-4.8
200
What is 1.5 x 3/15?
0.3
200
a/k if a=0.45 and k=-3/4
-0.6
or
-3/5
200
Evaluate (xy)/z when x=1.75 ,
y=-3 and z=1.05
-5
300
What is the decimal representation of 5/9
0.bar5
300
-0.25+2 1/5+1 3/8
3 13/40 or 3.325 or 3 325/1000
300
-3 1/8-4 1/2
-7 5/8
300
(-3/4) x (1/6)
(-3/24) or - 0.125
300
(-2/8) divided by (1/6)
-12/8 or -1.5
300
The school record for the race is 12.3 seconds. Marco ran the race in 12 7/20 seconds. Did Marco set a new school record? How do you know?
No, Marco did not set a record because his time is 12.35 seconds which is more than 12.3.
400
Write the fraction 19/20 as a decimal.
0.95
400
Which of the following are a set of additive inverses? Select all that apply.
A) 1/2,-0.5
B) -5 1/8, 5.125
C) -0.7bar8, -7/9
D) 2/3, 0.bar6
A and B
400
Maria brought $58.45 with her to the mall. After buying the following items, how much does she have left?
$37.01
400
The area of a rectangle is found by multiplying the base and height. Find the area of the rectangle below.
21.45
400
What is the average amount saved or spent per week during this time? (Average - Find the total divided by how many weeks)
-2.95
400
Katie earns $102.36 for working 12 hours. What is her hourly rate?
$8.53 per hour
500
What is the additive inverse of:
a. - 3.45
b. 1/2
c. -4 1/3
a. 3.45
b. - 1/2
c. 4 1/3
500
What is
-1/4 + 1/2 + 1 3/6
21/12 or 1.75
500
The ice cream shop had 220.5 gallons of ice cream this morning. How much did they have left after 4 hours?
1 hour (-13.4)
2 hour (-15 1/5)
3 hour (-16 1/4)
4 hour (-22.75)
152.9
500
(-1/4) x (3/6) x (-3/12)
9/288 or 0.03125
500
(-2/10) divided by (3/8) divided by (-4/5)
80/120 or 0.6666666
500
There are 40 quarters in a roll. Each quarter is 1.75 mm. What is the total length of 5.5 rolls of quarters?
385 mm