Multiplication Vocabulary

Question 1

factors

Answer 1

the numbers that are multiplied together in a multiplication problem

Question 2

product

Answer 2

the answer to a multiplication problem

Question 3

square number

Answer 3

the products of a multiplication problem when a number is multiplied by itself (array is square)

Question 4

commutative property

Answer 4

the property in addition and multiplication that says changing the order of the numbers being added or multiplied does not change the answer

Question 5

array

Answer 5

a rectangular model that shows equal groups

Question 6

factor pairs

Answer 6

two numbers that multiplied (paired) together to form a product

Question 7

multiples

Answer 7

your COUNTS when you skip count by a number

Question 8

prime number

Answer 8

a number with only one factor pair, 1 and itself

Question 9

composite number

Answer 9

a number with two or more factor pairs

Question 10

perimeter

Answer 10

the distance around all sides of a shape

Question 11

perimeter formula for a rectangle

Answer 11

Perimeter = length + length + width + width
P = l + l + w + w

Question 12

area

Answer 12

the amount of space covered by a shape

Question 13

area formula for a rectangle

Answer 13

Area = length * width
A = l * w

Question 14

example of factors

Answer 14

2 * 3 = 6

factors are 2 and 3

Question 15

example of product

Answer 15

2 * 3 = 6

product is 6

Question 16

example of square numbers

Answer 16

16 (4 * 4)

25 (5 * 5)

81 (9 * 9)

Question 17

example of commutative property

Answer 17

2 * 5 = 10, so 5 * 2 = 10

Question 18

example of array

Answer 18

2 * 3 = 6
2 rows, 3 in each row
X X X
X X X

Question 19

factor pairs for 21

Answer 19

1, 21
3, 7

Question 20

factor pairs for 12

Answer 20

1, 12
2, 6
3, 4

Question 21

multiples of 9

Answer 21

9, 18, 27, 36, 45, 54, 63, 81, 90

Question 22

multiples of 7

Answer 22

7, 14, 21, 28, 35, 42, 49, 56, 63, 70

Question 23

21, prime or composite?

Answer 23

composite - it has more than one factor pair

Question 24

7, prime or composite?

Answer 24

prime - it has only one factor pair, 1 and 7

Question 25

19, prime or composite?

Answer 25

prime - it has only one factor pair, 1 and 19

Question 26

2, prime or composite?

Answer 26

prime - it has only one factor pair, 1 and 2
2 is the only even prime number

Question 27

24, prime or composite?

Answer 27

composite - it has more than one factor pair

Question 28

perimeter of a rectangle that is 10 inches long and 3 inches wide

Answer 28

P = l + l + w + w
P = 10 + 10 + 3 + 3
P = 26 units

Question 28

area of a rectangle that is 5 inches long and 7 inches wide

Answer 28

A = l * w
A = 5 * 7
A = 35 square inches

Question 29

multiplication
2 * 5 = 10

Answer 29

repeated addition
2 five times
2 + 2 + 2 + 2 + 2 = 10