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PPT – Applying the IDENTITY, COMMUTATIVE, and ASSOCIATIVE properties of multiplication. PowerPoint presentation | free to download - id: 4da825-MGZlO

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Applying the IDENTITY, COMMUTATIVE, and

ASSOCIATIVE properties of multiplication.

Georgia Performance Standard I can apply the

identity, commutative, and associative properties

of multiplication and verify the results.

IDENTITY Property of Multiplication

- When you multiply a number by 1, the product is

that number. - EXAMPLES 1 X 6 6
- 1 X 8 8
- 1 X 69 69
- 1 X 547 547

COMMUTATIVE Property of Multiplication

- You can multiply two numbers in any order. The

product stays the same. - EXAMPLE 6 X 7 42
- 7 X 6 42
- 7 X 6 6 X 7

Commutative Property of Multiplication

- 3 X 87 261
- 87 X 3 261
- If 3 X 87 261, then 87 X 3 261
- 3 X 87 87 X 3

ASSOCIATIVE Property of Multiplication

- When you multiply three or more numbers, it

doesnt matter which tow numbers you group or

multiply first. The product will stay the same. - EXAMPLE 2 X 4 X 3 2 X 4 X 3
- (2 X 4) X 3 2 X (4

X 3) - 8 X 3 2

X 12 - 24

24

ASSOCIATIVE Property

- (6 X 7) X 3 6 X (7 X 3)
- 42 X 3 6 X 21
- 126 126

Solve using the identity, commutative, or

associative property of multiplication.

- 7 X 1 ?
- What property of multiplication did you use to

help you solve the problem?

Solve using the identity, commutative, or

associative property of multiplication.

- 87 X 1 ?
- What property of multiplication did you use to

help you solve the problem?

Solve using the identity, commutative, or

associative property of multiplication.

- 1 X 258 ?
- What property of multiplication did you use to

help you solve the problem?

Solve using the identity, commutative, or

associative property of multiplication.

- (3 X 4) X 6 3 X (4 X )
- What property of multiplication did you use to

help you solve the problem?

Solve using the identity, commutative, or

associative property of multiplication.

- If 5 X 4 20, then 4 X 5
- What property of multiplication did you use to

help you solve the problem?

Solve using the identity, commutative, or

associative property of multiplication.

- (63 X 2) X 12 63 X ( X 12)
- What property of multiplication did you use to

help you solve the problem?

Model

- What is the missing number?
- 21 X 9 X 21
- 1
- 9
- 21
- 189

Guided Group Practice

- What is the missing number?
- 54 X 6 X 54
- 324
- 56
- 6
- 1

Guided Individual Practice

- What is the missing number?
- 24 X 2 2 X
- 48
- 24
- 2
- 0

Independent Practice

- What is the missing number?
- 36 X 5 5 X
- 1
- 5
- 36
- 180

Model

- To multiply 7 X 4 X 5, you can multiply 4 X 5

first. What must you multiply by next? - 35
- 28
- 7
- 4

Guided Group Practice

- To multiply 6 X 2 X 10, you can multiply 2 X 10

first. What must you multiply by next? - 12
- 10
- 6
- 2

Guided Individual Practice

- To multiply 5 X 2 X 4, you can multiply 5 X 2

first. What must you multiply by next? - 2
- 4
- 5
- 10

Independent Practice

- To multiply 3 X 5 X 2, you can multiply 5 X 2

first. What must you multiply by next? - 2
- 3
- 5
- 10

Model

- Which number belongs in the to make the

number sentence TRUE? - 18 X 18
- A. 0
- B. 1
- C. 18
- D. 36

Guided Group Practice

- Which number belongs in the to make the

number sentence TRUE? - 8 X 24
- A. 2
- B. 3
- C. 162
- D. 282

Guided Individual Practice

- Which number belongs in the to make the

number sentence TRUE? - 4 X 36
- A. 4
- B. 8
- C. 9
- D. 144

Independent Practice

- Which number belongs in the to make the

number sentence TRUE? - 7 X 49
- A. 7
- B. 8
- C. 9
- D. 343

Model

- If 8 X 16 128, then 16 X 8
- A. 2
- B. 16
- C. 24
- D. 128

Guided Group Practice

- If 4 X 12 48, then 12 X 4
- A. 48
- B. 40
- C. 4
- D. 1

Guided Individual Practice

- If 5 X 15 75, then 15 X 5
- A. 5
- B. 15
- C. 55
- D. 75

Independent Practice

- If 2 X 55 110, then 55 X 2
- A. 2
- B. 55
- C. 110
- D. 120

Model

- Which of the following does NOT have the same

product as 2 X 4 X 7? - A. (2 X 4) X 2
- B. 2 X (4 X 7)
- C. (2 X 4) X 7
- D. 4 X 2 X 7

Guided Group Practice

- Which of the following does NOT have the same

product as 4 X 8 X 9? - A. (4 X 8) X 9
- B. 4 X (8 X 9)
- C. (4 X 4) X 9
- D. 4 X 8 X 9

Guided Individual Practice

- Which of the following does NOT have the same

product as 2 X 5 X 9? - A. (2 X 5) X 9
- B. 2 X (2 X 5)
- C. (5 X 2) X 9
- D. 9 X 5 X 2

Independent Practice

- Which of the following does NOT have the same

product as 6 X 2 X 7? - A. (6 X 2) X 7
- B. 6 X (2 X 7)
- C. (6 X 7) X 2
- D. 6 X 7 X 7

Model

- What is the missing number?
- 5 X 95 95 X
- A. 5
- B. 90
- C. 95
- D. 475

Guided Group Practice

- What is the missing number?
- 4 X 56 56 X
- A. 224
- B. 56
- C. 4
- D. 1

Guided Independent Practice

- What is the missing number?
- 74 X 36 36 X
- A. 1
- B. 36
- C. 74
- D. 2,664

Individual Practice

- What is the missing number?
- 4 X 92 92 X
- A. 4
- B. 92
- C. 368
- D. 2,956

Model

- Which is equivalent to the following?
- 8 X 5 5 X 7
- a. 8 X 5 5 X 7
- b. 8 X 7 5 X 5
- c. 7 X 3 5 7
- d. 8 5 X 5 7

Guided Group Practice

- Which is equivalent to the following?
- 14 X 6 8 X 12
- a. 8 5 5 7
- b. 14 X 12 6 X 8
- c. 14 X 6 12 X 8
- d. 14 6 X 8 12

Guided Individual Practice

- Which is equivalent to the following?
- 7 X 8 2 X 9
- a. 7 8 2 9
- b. 7 X 2 8 X 9
- c. 7 X 8 2 9
- d. 8 X 7 2 X 9

Independent Practice

- Which is equivalent to the following?
- 45 X 5 78 X 3
- a. 45 X 3 78 X 5
- b. 7 X 2 8 X 9
- c. 7 X 8 2 9
- d. 8 X 7 2 X 9

Lets review

- How can I apply the identity, commutative, and

associative properties of multiplication and

verify the results.