3 Digit Addition and Subtraction

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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 3-digit subtraction?

Back

3-digit subtraction is the process of subtracting one 3-digit number from another, like 789 - 456.

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

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How do you find the total number of items?

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To find the total number of items, you add the quantities together.

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CCSS.2.OA.C.4

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What does 'to the nearest hundred' mean?

Back

'To the nearest hundred' means rounding a number to the closest multiple of 100.

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What is the sum of 475 and 189?

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The sum of 475 and 189 is 664.

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CCSS.2.NBT.B.7

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What is the difference between 443 and 125?

Back

The difference between 443 and 125 is 318.

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CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

How do you calculate how many more tickets one person sold than another?

Back

To find out how many more tickets one person sold than another, subtract the smaller number from the larger number.

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CCSS.2.OA.A.1

Front

What is the total number of balloons if Shaun blew up 36 red, 28 white, and 24 blue balloons?

Back

The total number of balloons is 36 + 28 + 24 = 88.

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CCSS.2.NBT.B.6

Front

What is the process of rounding numbers?

Back

Rounding numbers involves adjusting a number to make it simpler while keeping its value close to what it was.

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Front

What is the result of 568 rounded to the nearest hundred?

Back

568 rounded to the nearest hundred is 600.

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