3-Digit Addition

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What is 3-digit addition?

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3-digit addition is the process of adding numbers that have three digits, which can range from 100 to 999.

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

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What is the sum of 340 and 450?

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790

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

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If Leo made 340 snowmen on Sunday and 450 on Monday, how many snowmen did he make in total?

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790 snowmen

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

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What is the sum of 253 and 325?

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578

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

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If a baby laughed 253 times on Wednesday and 325 times on Thursday, how many times did the baby laugh in total?

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578 times

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

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What is the sum of 301 and 311?

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612

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

If Anna sang 301 songs on Friday and 311 songs on Saturday, how many songs did she sing in total?

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612 songs

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the sum of 645 and 214?

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859

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

If Janiya had 645 dresses and her grandmother bought her 214 more, how many dresses does she have now?

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859 dresses

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the sum of 254 and 324?

Back

578

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7