Number Operations
What is the greatest common factor of 12 and 16?
4
Solve for x: 5x = 20
x = 4
Jen's height is 5x + 2/3 and Lori's height is 2x - 1/3.
How much taller is Jen than Lori?
3x + 1/3
What is the mode of the following set of numbers: 2, 3, 3, 5, 7?
3
What is a ratio?
A comparison of two quantities.
Calculate the sum of 2.5 + 3.75 + 4.25.
10.5
What is the value of 2x + 3 when x = 5?
13
16 feet
If a bag contains 3 red, 2 blue, and 5 green marbles, what is the probability of picking a green marble?
5/10 = 1/2
If the ratio of cats to dogs is 3 : 2 and there are 12 cats, how many dogs are there?
8
What is 15 ÷ 3 + 4 × 2?
13
Simplify: 3(x + 4) − 2x
x + 12
Jenny needs to earn $160 for a new outfit. Mom says if she can earn 25% of the cost, she'll pay the rest. How much will Jenny need to pay
$40
What is the median of the following numbers: 1, 3, 4, 2, 5?
3
Solve the proportion:
4/x = 2/8
x = 16
If you have 3/4 of a pizza and you eat 1/4, how much pizza do you have left?
1/2 of a pizza
Solve for y: 7y − 14 = 0
y = 2
Lori gets a deal on some movie tickets. She is able to buy 6 tickets for $30. What is the unit rate OR the cost of one ticket?
$5
If you flip a coin, what is the probability of getting heads?
1/2
If a recipe calls for 2 cups of sugar for every 3 cups of flour, how much sugar is needed for 9 cups of flour?
6 cups of sugar
What is 25% of 200?
50
If 2(x - 3) = 10, what is x?
x = 8
If a square has a perimeter of 36, what is the length of one side?
9
A survey shows that 60% of students prefer math over science. If there are 100 students, how many prefer math?
60 students
A car travels 240 miles on 8 gallons of gas. How many miles can it travel on 10 gallons?
300 miles