Exploring Addition and Subtraction Fact Families

The video tutorial introduces the concept of number facts, which consist of three related numbers. It demonstrates how these numbers can be used to form addition and subtraction problems using tiles. The tutorial further explains fact families using dominoes and fact triangles, showing how knowing one fact can help solve others. The video emphasizes the importance of understanding these relationships to enhance problem-solving skills in mathematics.

What total do you get when you add 5 blue tiles to 3 pink tiles?

• 8 tiles

• 10 tiles

• 6 tiles

• 7 tiles

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CCSS.1.OA.A.1

If you start with 8 tiles and remove 5, how many are left?

• 3 tiles

• 5 tiles

• 4 tiles

• 2 tiles

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CCSS.2.OA.A.1

Which set of numbers forms a fact family with the numbers 5, 3, and 8?

• 5, 3, 8

• 1, 5, 6

• 4, 4, 8

• 2, 4, 6

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CCSS.1.OA.C.6

CCSS.2.OA.B.2

In the domino example, what is the sum of 6 and 4?

• 11

• 9

• 8

• 10

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CCSS.1.OA.A.1

What is the result of 10 minus 6 in the domino fact family?

• 4

• 6

• 5

• 3

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CCSS.2.OA.A.1

Which numbers are part of the fact family demonstrated by the domino?

• 4, 6, 10

• 2, 4, 6

• 5, 7, 12

• 3, 5, 8

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CCSS.1.OA.A.1

In a fact triangle with numbers 7 and 5, what is the missing number?

• 1

• 4

• 3

• 2

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CCSS.4.NBT.B.6

How can knowing one fact help with other facts in a fact family?

• It makes facts more complicated

• It changes the numbers

• It helps predict other facts

• It reduces the number of facts

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CCSS.4.NBT.B.6

What does a fact triangle show?

• Only subtraction facts

• The highest number in a set

• Three numbers in a fact family

• Only addition facts

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CCSS.2.OA.C.4

What is the sum of 5 and 2 in the fact triangle example?

• 7

• 8

• 6

• 9

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CCSS.1.OA.A.1