Multiplication and Division with Whole Numbers

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times (3 + 3 + 3 + 3) which equals 12.

Front

What is division?

Back

Division is a mathematical operation that represents the process of splitting a number into equal parts. For example, 12 divided by 3 (12 ÷ 3) means splitting 12 into 3 equal parts, which equals 4.

Front

How do you find the total number of seats in a theater with 48 rows and 12 seats per row?

Back

Multiply the number of rows by the number of seats per row: 48 x 12 = 576 seats.

Front

If a store has 1,447 fish and puts 76 fish in each aquarium, how do you find the number of aquariums?

Back

Divide the total number of fish by the number of fish per aquarium: 1,447 ÷ 76 = 19 aquariums.

Front

What does it mean for a number to be a factor?

Back

A factor is a number that divides another number without leaving a remainder. For example, 2 and 3 are factors of 6 because 6 ÷ 2 = 3 and 6 ÷ 3 = 2.

Front

What is the product of two numbers?

Back

The product is the result of multiplying two numbers together. For example, the product of 5 and 6 is 30 (5 x 6 = 30).

Front

How can you check if your multiplication is correct?

Back

You can check multiplication by using division. If the product of two numbers is correct, dividing the product by one of the factors should give you the other factor.

Front

What is an average?

Back

The average is the sum of a set of numbers divided by the count of numbers in the set. For example, the average of 2, 4, and 6 is (2 + 4 + 6) ÷ 3 = 4.

Front

How do you calculate the total calories consumed if each student eats a bag of carrots with 49 calories?

Back

Multiply the number of students by the calories per bag: 387 students x 49 calories = 18,963 calories.

Front

What is a remainder in division?

Back

A remainder is the amount left over after division when one number does not divide evenly into another. For example, 10 ÷ 3 = 3 with a remainder of 1.