Exploring Fact Families in Addition and Subtraction

The video tutorial introduces the concept of fact families using a fun theme of haunted houses. It explains how numbers in a fact family can be added or subtracted to equal one another, using examples with numbers 10, 7, and 3, as well as 20, 5, and 15. The tutorial provides instructions for a worksheet activity, guiding students to identify correct equations within a fact family. A second fact family with numbers 14, 8, and 6 is also explored. The video concludes with a recap and encourages students to verify their work by ensuring all numbers belong to the fact family.

What is the sum of 7 and 3 in a fact family?

• 8

• 9

• 11

• 10

Tags

CCSS.1.OA.A.1

Does the equation 10 + 3 belong in the fact family of 10, 7, and 3?

• Yes

• No

• Only in subtraction

• Only if reversed

Tags

CCSS.2.NBT.B.5

In the fact family of 20, 5, and 15, which equation is incorrect?

• 20 - 15

• 20 - 14

• 15 + 5

• 20 - 5

Does 15 + 5 equal 20 in a fact family?

• Only in certain cases

• Not applicable

• No

• Yes

Tags

CCSS.2.NBT.B.5

What is the result of 20 - 5?

• 15

• 5

• 25

• 10

Tags

CCSS.1.OA.C.6

Does the equation 8 + 6 correctly belong in the fact family of 14, 8, and 6?

• Yes

• No

• Only in subtraction

• Only in addition

Tags

CCSS.2.NBT.B.5

What is the correct subtraction result of 14 - 8?

• 6

• 7

• 8

• 5

Tags

CCSS.2.OA.A.1

Which equation does not belong in the fact family of 14, 8, and 6?

• 14 - 8

• 8 + 6

• 8 + 5

• 14 - 6

Tags

CCSS.2.NBT.B.5

What is the result of subtracting 6 from 14?

• 6

• 8

• 9

• 7

Tags

CCSS.2.OA.A.1

In the fact family of 14, 8, and 6, which operation is incorrect?

• 14 - 5

• 14 - 8

• 8 + 6

• 14 - 6

Tags

CCSS.2.OA.C.4