Addition and Subtraction Fact Strategies

What strategy would you use to solve an addition problem?

• count back

• count on

• double

• double + 1

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Use a strategy to solve:

8 + 3 =

• 11

• 14

• 5

• 9

Tags

CCSS.1.OA.A.1

Use a strategy to solve:

15 - 3 =

• 18

• 11

• 6

• 12

Tags

CCSS.1.OA.C.6

What strategy would you use to solve a subtraction problem?

• count on

• double

• count back

• double +1

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Solve this doubles fact:

6 + 6 =

• 12

• 10

• 36

• 18

Tags

CCSS.1.OA.A.1

CCSS.1.OA.C.6

CCSS.1.OA.D.7

CCSS.1.OA.D.8

Solve this doubles fact:

9 + 9 =

• 20

• 15

• 18

• 81

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What strategy would you use to solve this:

6 + 2 =

• double +1

• count on

• double

• count back

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

8 + 9 = 17

• True

• False

Tags

CCSS.1.OA.B.3

What is the fastest way to solve this:

9 + 8 =

• doubles fact

• doubles +1 fact

• count on

• count back

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Solve the following facts quickly -

use strategies!

4 + 3 = ___

7 + 7 = ___

8 + 7 = ___

9 - 3 = ___

• 7, 14, 18, 2

• 12, 14, 15, 6

• 6, 49, 16, 12

• 7, 14, 15, 6

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2