Multiplication and Arrays
Multiplication is repeated addition of equal-sized groups. Give an example of repeated addition.
5 + 5 + 5 + 5 = 20
This represents 5 x 4 = 20
Multiples are the product of a given whole number and another whole number. List the first three multiples of five.
5, 10, 15.
A factor is a number that is multiplied by another number to find a product. What are the two factors in the following multiplication fact? 6 x 3 = 18
3, 6
A product is the result of a multiplication problem. In other words, when two factors are multiplied, the answer is called the product. What is the product in the following mathematical statement? 5 x 7 = 35
35
What is 34 ÷ 2?
17
An array can represent multiplication and has equal rows and columns. Draw an array for a product of 12.
1 x 12, 2 x 6 or 3 x 4.
List the first six multiples of two.
2, 4, 6, 8, 10, 12.
What are two factors of 20?
A quotient is the result of the division of one quantity by another. In other words, the quotient is the answer from a division problem. What is the quotient in the following statement? 30 ÷ 5 = 6
6
Kevin needs to pass out 20 chips to his four friends. How many chips will each friend receive if they all need to have the same amount?
5
Sandra has three friends and wants to give each friend seven pieces of candy. How many pieces of candy will she give away?
21
4, 8, 12, 16 and 20 are the first five multiples of what number?
4
A factor pair is a set of two numbers we multiply to get a particular product. What is a factor pair of 20?
One of the following: 1 and 20, 2 and 10, 4 and 5.
A product is the result of a (multiplication or division) problem?
Multiplication.
If we need to split 20 objects between 5 people, would this be division by sharing or division by grouping?
Division by sharing. (Known quantity, unknown number per group)
What is the product of eight and six?
48
What is a multiple? Give an example.
A multiple is a given whole number multiplied by another whole number.
What are all the factors of the product 12? Afterwards, list the factors as pairs.
1, 2, 3, 4, 6, 12. 1 and 12, 2 and 6, 3 and 4.
A quotient is the result of a (multiplication or division) problem.
Division.
If we need to pass out 30 pieces of paper to a group of students, and each student receives 3 pieces of paper, would this be division by sharing or division by grouping?
Division by grouping (Known quantity, known number in each group)
What is multiplication? Give an example.
Multiplication is repeated addition of equal-sized groups.
What is the product of six and seven?
42
What is a factor? Give an example.
A factor is a number multiplied by another number to find a product. 6 and 3 are factors of the product 18.
What is a product? What is a quotient?
Product is the result of multiplication. Quotient is the result of division.
What is the quotient of 14 and 2?
7