Three-Digit Addition with Regrouping

Front

What is three-digit addition?

Back

Three-digit addition is the process of adding numbers that have three digits, such as 245 or 378.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What does regrouping mean in addition?

Back

Regrouping in addition means carrying over a value from one column to the next when the sum exceeds 9.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

Front

What is the sum of 245 and 378?

Back

623

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the sum of 183 and 427?

Back

610

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the total when 512 and 387 are added?

Back

899

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of adding 598 and 304?

Back

902

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Add 654 and 287.

Back

941

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the first step in three-digit addition?

Back

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

Tags

CCSS.2.NBT.B.7

Front

How do you add the ones place in 245 + 378?

Back

Add 5 and 8, which equals 13. Write down 3 and carry over 1.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What do you do after adding the ones place?

Back

After adding the ones, add the tens place, including any carry-over from the ones.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4