FoA 10-20 Properties Discovery

FoA 10-20 Properties Discovery

Work out the given set of problems. Do you get the same answers?

Fill in the Blank

1). a). 4 * 5 = ___

b). 5 * 4 = ____

Order doesn't matter for multiplication!

4 * 5 = 5 * 4 = 20!

Fill in the Blank

2. a). 3 + 6 + 8 = ___

b). 3 + 8 + 6 = ___

Order doesn't matter for addition!

3 + 6 + 8 = 17 = 3 + 8 + 6

Fill in the Blank

3. a). (5 + 4) + 1 = ___

b). 5 + (4 + 1) = ___

Grouping doesn't matter for addition!

(5 + 4) + 1 = 5 + (4 + 1) = 10

Fill in the Blank

4. a). 11 * (9 * 1)= ___

b). (11 * 9) * 1 = ___

Grouping doesn't matter for multiplication!

11 * (9 * 1) = (11 * 9) * 1 = 99

These are called PROPERTIES.

Properties work for Addition and Multiplication

Pause here

Next is the Exit Ticket Slides

Multiple Choice

Name the property:

7(2 - 8) = 7(2) - 7(8)

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Multiple Choice

Name the property:

9 * (5 * 12) = (9* 5) * 12

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Multiple Choice

Name the property:

2x + 0 = 2x

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Multiple Choice

Name the property:

8 + 11 = 11 + 8

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Multiple Choice

Name the property:

100 * 1 = 100

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property