Addition & Subtraction Fact Families

Find the two subtraction fact family number sentences for the following numbers: 11, 5,6

• 11-5 = 6

• 11-1 = 10

• 11-6 = 5

Tags

CCSS.1.OA.A.1

CCSS.1.OA.C.6

CCSS.1.OA.D.8

Find the two addition fact family number sentences for the following numbers: 3, 12, 9

• 12 + 3 = 9

• 9+3= 12

• 3+9= 12

Tags

CCSS.1.OA.A.1

CCSS.1.OA.A.2

CCSS.1.OA.B.3

CCSS.1.OA.C.6

CCSS.1.OA.D.7

Which number sentence completes the fact family?

6+7= 13

7+6= 13

13-6= 7

?

Tags

CCSS.1.OA.A.1

CCSS.1.OA.C.6

CCSS.1.OA.D.7

CCSS.1.OA.D.8

Which number sentence completes the fact family?

15-5=10

15-10=5

10+5=15

?

• 5+10= 15

• 5+6=11

• 5+5=10

Tags

CCSS.1.OA.A.1

CCSS.1.OA.C.6

CCSS.1.OA.D.7

CCSS.1.OA.D.8

When subtracting the biggest number goes first in a number sentence

• True

• False

Tags

CCSS.1.OA.D.7

When we write fact family number sentences, we always use the same three numbers.

• Yes

• No

Find the two subtraction fact family number sentences for the following numbers: 7,15,8

• 15-8=7

• 15-7=8

• 15+7=8

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.9

CCSS.2.OA.A.1

Commutative property is when you ______ the numbers.

• add

• flip

• erase

Tags

CCSS.1.OA.B.3

Is this a fact family?

2+ 5=7

4+2= 6

12-1 =11

10-2=8

• Yes! it's a fact family

• No, it's not a fact family

Tags

CCSS.1.OA.D.7

Fact families have four numbers like this:

3+5+2=10

• yes!

• no