Addition - 2 digit + 1 digit

Front

What is the sum of a two-digit number and a one-digit number?

Back

The sum is the result of adding the two numbers together, which can be calculated by aligning the numbers and performing the addition.

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CCSS.2.NBT.B.7

Front

How do you add 16 and 3?

Back

To add 16 and 3, align the numbers and add the digits: 16 + 3 = 19.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the result of adding 8 and 11?

Back

The result of adding 8 and 11 is 19.

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CCSS.1.OA.A.1

Front

What is the process for adding 17 and 2?

Back

To add 17 and 2, you simply add the digits: 17 + 2 = 19.

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CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

What is 14 + 3?

Back

14 + 3 equals 17.

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CCSS.1.OA.C.6

CCSS.2.OA.B.2

Front

How do you calculate 13 + 5?

Back

To calculate 13 + 5, add the two numbers together: 13 + 5 = 18.

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CCSS.2.OA.A.1

Front

What is the importance of understanding addition of two-digit and one-digit numbers?

Back

Understanding this concept is crucial for solving more complex arithmetic problems and for real-life applications such as budgeting and shopping.

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CCSS.1.OA.A.1

Front

What strategies can be used to add two-digit and one-digit numbers?

Back

Strategies include breaking down the two-digit number into tens and ones, using number lines, or counting up from the smaller number.

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CCSS.2.NBT.B.7

Front

What is a common mistake when adding two-digit and one-digit numbers?

Back

A common mistake is misaligning the numbers or forgetting to carry over when the sum exceeds 10.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How can you verify the result of an addition problem?

Back

You can verify the result by using the inverse operation (subtraction) or by estimating the sum.

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CCSS.1.OA.A.1