3rd Grade Go Math, Chapter 1 Vocabulary

What property of addition can change order, but stay the same? Hint: looks like a mirror

• Identity property of addition
• Commutative property of addition

2 + 5 + 6 = 6 + 2 + 5

• Identity Property of Addition
• Commutative Property of Addition

Rewrite (9 + 6) + 5 using the associative property.

• 20
• (9 + 6) + 5 = (9 + 5) + 6
• (9 + 6) + 5  = 9 + (6+5)
• (9 + 6) + 5  = 5 + 9 + 5 + 6

Tags

CCSS.6.EE.A.3

12 + 7 = 7 + 12 
What property is this? 

• Commutative Property of Addition
• Commutative Property of Multiplication
• Distributive Property
• Identity Property of Addition

Tags

CCSS.1.OA.B.3

What property allows this statement to be true? 
(A + B) + C = A + ( B + C)

• Associative
• Commutative
• Distributive
• Identity

Tags

CCSS.6.EE.A.3

Compatible numbers are:

• Fake numbers
• The grocery store
• Numbers that help make math easier and are friendly

To start off, what does it mean to be compatible?

• Complete opposites
• Absolutely no relationship
• A good fit or pair

Why are we learning about compatible numbers?

• to help us feel better

• Mrs. Curtis loves math!

• To help us estimate before we divide

• just because

What is the pattern growing by 
30, 40, 50, 60, 70 

• +10
• -10
• +2
• -2

What comes next in this pattern
110, 100, 90, ____, ____, ____

• 90, 80, 70
• 85, 80,75
• 80, 70, 60
• 100, 110, 120