Addition Strategies

What addition sentence has the same addends but are in a different order?
2+3=5

• 3+2=5
• 5+2=7
• 3+5=8

7+8=

• Doubles
• Make Ten Facts
• Count on Facts
• Doubles Plus or Minus One

How would you rearrange this to find the missing number?

• 9 - 15 = ?
• 15 - 9 = ?

Solve this doubles fact:

6 + 6 =

• 12

• 10

• 36

• 18

8 + 9 = 17

• True

• False

What is the fastest way to solve this:

9 + 8 =

• doubles fact

• doubles +1 fact

• count on

• count back

Solve the following facts quickly -

use strategies!

4 + 3 = ___

7 + 7 = ___

8 + 7 = ___

9 - 3 = ___

• 12, 14, 15, 6

• 7, 14, 15, 6

Select all answers that are equal to 7

• 5+2

• 7+1

• 7+0

• 8+3

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

• 5
• 13
• 0

Which shows the same addends but in a different order?
1+8=9

• 8+1=9
• 9+2=11
• 1+7=8