Adding 3-Digit Numbers

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

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What do you call the result of adding two numbers?

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The result is called the 'sum.'

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CCSS.6.EE.A.1

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What is the first step in adding 3-digit numbers?

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Align the numbers by their place values (hundreds, tens, units).

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CCSS.2.NBT.B.7

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When adding, what do you do if a column exceeds 9?

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You carry over the extra value to the next column.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

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What is the place value of the digit 5 in the number 345?

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The place value of 5 in 345 is 'tens' (50).

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CCSS.4.NBT.A.1

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What is the place value of the digit 2 in the number 212?

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The place value of 2 in 212 is 'hundreds' (200).

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CCSS.4.NBT.A.1