3 Digit Addition

Front

What is 3 Digit Addition?

Back

3 Digit Addition is the process of adding numbers that have three digits, such as 123 + 456.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 385 and 6?

Back

391

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 330 and 10?

Back

340

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 240 and 210?

Back

450

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 451 and 10?

Back

461

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 454 and 0?

Back

454

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CCSS.1.OA.B.3

Front

What is the first step in 3 Digit Addition?

Back

Line up the numbers by their place values (hundreds, tens, and ones).

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CCSS.2.NBT.B.7

Front

What do you do if the sum of the ones place is 10 or more?

Back

You carry over 1 to the tens place.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is carrying in addition?

Back

Carrying is when you move a value from one place value to the next higher place value when the sum exceeds 9.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the place value of the digit 5 in the number 385?

Back

The place value of 5 in 385 is 80 (or 8 tens).

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CCSS.2.NBT.A.3