Addition with 3 Addends

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

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CCSS.1.OA.A.1

Front

What do we call the numbers we add together?

Back

The numbers we add together are called addends.

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CCSS.6.EE.A.1

Front

What is the sum of 36, 21, and 41?

Back

The sum is 98.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 65, 32, and 95?

Back

The sum is 192.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 18, 61, and 39?

Back

The sum is 118.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 33, 35, and 68?

Back

The sum is 136.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 83, 83, and 24?

Back

The sum is 190.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you write the addition of three numbers?

Back

You write it as: number1 + number2 + number3.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is a simple way to check your addition?

Back

You can add the numbers in pairs and then add the results.

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CCSS.1.OA.A.1

Front

What is the first step in adding three numbers?

Back

Start by adding the first two numbers together.