Chapter 3 Review

Vocabulary

Related Addition &Multiplication

Model with arrays

Commutative Property of Multiplication

100

groups that have the same number of objects

a. factors

b. array

c. equal groups

100

3 groups of 6

**you need an addition and multiplication problem**

6 + 6 + 6 = 18

3 x 6 = 18

100

X X X X X X

3 x 6 = 18

100

Use the commutative property of multiplication to write the related math problem

4 x 5 = 20

5 x 4 = 20

200

a number that is multiplied by another number to find a product

a. factor

b. equal groups

c. Product

a. factor

200

2 groups of 3

**you need an addition and multiplication problem**

3 + 3 = 6

2 x 3 = 6

200

X X X

4 x 3 = 12

200

Use the commutative property of multiplication to write the related math problem

7 x 8 = 56

8 x 7 = 56

300

the answer of a multiplication problem

a. array

b. product

c. multiply

b. product

300

4 groups of 2

**you need an addition and multiplication problem**

2 + 2 + 2 + 2 = 8

4 x 2 = 8

300

X X X X X X X X X

2 x 9 = 18

300

Use the commutative property of multiplication to write the related math problem

3 groups of 7

7 groups of 3

3 x 7 = 21

7 x 3 =21

400

a set of objects arranged in rows and columns

a. factor

b. array

c. communicative property of multiplication

b. array

400

5 groups of 4

**you need an addition and multiplication problem**

4 + 4 + 4 + 4 + 4 = 20

5 x 4 + 20

400

X X X X X X X X X X

4 x 10 = 40

400

Use the commutative property of multiplication to write the related math problem

2 groups of 10

10 groups of 2

2 x 10 = 20

10 x 2 = 20

500

the property that states that you can multiply two factors in any order and get the same product.

a. factor

b. array

c. communicative property of multiplication

500

5 groups of 5

**you need an addition and multiplication problem**

5 + 5 + 5 + 5 + 5 = 25

5 x 5 = 25

500

4 x 1 = 4

500

Use the commutative property of multiplication to write the related math problem

5 groups of 6

6 groups of 5

5 x 6 = 30

6 x 5 = 30