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.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the place value of the digit 5 in the number 256?

Back

In the number 256, the digit 5 is in the tens place, which means it represents 50.

Tags

CCSS.4.NBT.A.1

Front

How do you add numbers in the hundreds place?

Back

To add numbers in the hundreds place, you align the numbers vertically and add the digits in the hundreds column, carrying over if necessary.

Tags

CCSS.2.NBT.B.7

Front

What is carrying in addition?

Back

Carrying is when the sum of a column exceeds 9, and you move the extra value to the next left column.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

Front

What is the sum of 123 and 456?

Back

The sum of 123 and 456 is 579.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What do you do if the sum of the ones place is more than 9?

Back

If the sum of the ones place is more than 9, you carry over to the tens place.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

Front

What is the first step in 3-digit addition?

Back

The first step is to line up the numbers by their place values: hundreds, tens, and ones.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

Front

What is the sum of 789 and 213?

Back

The sum of 789 and 213 is 1002.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the place value of the digit 2 in the number 742?

Back

In the number 742, the digit 2 is in the tens place, which means it represents 20.

Tags

CCSS.4.NBT.A.1

Front

How do you check your answer in addition?

Back

You can check your answer by adding the numbers again or by using subtraction.

Tags

CCSS.2.NBT.B.7