Integers and Operations
What is the opposite of -8?
Answer: 8
What is the ratio of 3 to 9 in simplest form?
Answer: 1:3
What is the formula for the area of a rectangle?
Answer: A = length × width or A = base × height
What is the top number in a fraction called?
Answer: Numerator
What does the term "range" mean in statistics?
Answer: Range is the difference between the highest and lowest values in a data set.
What is the sum of -3 and 5?
Answer: 2
If the ratio of cats to dogs is 5:3, how many cats are there if there are 12 dogs?
Answer: 20 cats
What is the sum of the angles in a triangle?
Answer: 180°
What is 25% written as a decimal?
Answer: 0.25
What does a probability of 1 represent?
Answer: A probability of 1 means the event is certain to occur.
What is the distance between -4 and 7 on a number line?
Answer: 11
A recipe calls for 2 cups of flour for every 3 cups of milk. How much flour is needed if you use 9 cups of milk?
Answer: 6 cups of flour
What is the circumference of a circle with a radius of 5 inches? (Use π = 3.14)
Answer: 31.4 inches
Multiply: 2/3 × 3/4
Answer: 6/12 or 1/2
Calculate the mean of the following numbers: 12, 15, 18, 21, 24.
Answer: The mean is 18 (sum of numbers divided by count: 90 ÷ 5 = 18).
What is the result of dividing -24 by -6?
Answer: 4
The scale on a map is 1 inch : 50 miles. If two cities are 3.5 inches apart on the map, what is their actual distance?
Answer: 175 miles
A rectangular room is 15 feet long and 12 feet wide. What is its perimeter?
Answer: 54 feet
If 30% of a number is 45, what is the number?
Answer: 150
In a bag of 20 marbles, 5 are red, 8 are blue, and 7 are green. What is the probability of drawing a blue marble?
Answer: The probability is 8/20 or 2/5 or 0.4.
John owes $45 to his friend. He pays back $12 this week and $18 next week. How much does he still owe?
Answer: $15
A store offers a 25% discount on a $80 shirt. After the discount, there is a 10% sales tax. What is the final price of the shirt?
Answer: $66.00
Find the volume of a cube with a side length of 4 cm.
Answer: 64 cm³
What is 15% of 80?
Answer: 12
If you draw two cards from a standard 52-card deck without replacement, what is the probability of drawing two aces?
Answer: 1/221 (4/52 × 3/51)