Math Chapter 2 Review

How the numbers are grouped does not change the sum:

4 + (6 + 8) = 18

(4 + 6) + 8 = 18

• Commutative Property of Addition

• Identity Property of Addition

• Associative Property of Addition

Tags

CCSS.1.OA.B.3

Mental Math is...

• A new rock band.

• A way of doing math in your head.

• A Property of Addition.

Tags

CCSS.2.NBT.B.5

The order of the numbers added does not change the sum:

5 + 8 = 13

8 + 5 = 13

• Associative Property of Addition

• Commutative Property of Addition

• Identity Property of Addition

Tags

CCSS.1.OA.B.3

When an answer makes sense it is...

• Wrong

• Parentheses

• Reasonable

Tags

CCSS.RF.2.3D

CCSS.RF.3.3B

CCSS.RF.3.3C

CCSS.RF.3.3D

CCSS.RF.4.3A

The sum of any number and zero equals that number:

7 + 0 = 7

• Commutative Property of Addition

• Associative Property of Addition

• Identity Property of Addition

Tags

CCSS.1.OA.B.3

When rounding a number close to its real value, it is an...

• Estimate

• Unknown

• Pattern

Tags

CCSS.5.NBT.A.4

What Property Am I?

8 + 1 = 9

1 + 8 = 9

• Commutative Property of Addition

• Identity Property of Addition

• Pattern

Tags

CCSS.1.OA.B.3

What Property Am I?

(2 + 6) + 4 = 12

2 + (6 + 4) = 12

• Associative Property of Addition

• Identity Property of Addition

• Mental Math

Tags

CCSS.1.OA.B.3

ROUND TO THE NEAREST HUNDRED:

3,679

• 4,000

• 3,700

• 3,500

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What Property Am I?

3 + 0 = 3

• Bar Diagram

• Commutative Property of Addition

• Identity Property of Addition

Tags

CCSS.1.OA.B.3