Revision

Is the sum odd or Even

5 + 3 =

• Even

• Odd

Is the sum odd or Even

2 + 7 =

• Even

• Odd

What related number sentence shows

the commutative property of Addition ?

6 + 8 = 14

• 14_6 = 8

• 14 _ 8 = 6

• 8+6 = 14

• 8+2=10

Round to the nearest ten

76

• 70

• 80

• 90

• 60

Round to the nearest hundred

423

• 500

• 400

• 600

• 700

Use rounding to estimate the sum

56 + 32

• 100

• 90

• 80

• 70

lana ordered 57 dresses for her store

What is 57 rounded to the nearest ten ?

• 50

• 60

• 70

• 80

Use addition properties to find the sum

23

+17

+15

• 60

• 70

• 55

• 80

Use break a part strategy to find the sum

123 + 623

• 467

• 623

• 746

• 264