Mastering Addition with Regrouping

The video tutorial explains how to add two numbers, 35 and 27, by breaking them into tens and ones. It demonstrates the process of adding the ones first, resulting in 12, and then carrying over 10 to the tens place. The tutorial further explains how to add the tens, resulting in a final sum of 62. The concept of carrying over, also known as regrouping, is highlighted as a key step in the addition process.

What are the two numbers being added in the video?

• 45 and 17

• 35 and 27

• 55 and 12

• 25 and 37

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

How many ones are there in the first number?

• 3

• 5

• 4

• 6

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CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the sum of 5 ones and 7 ones?

• 11

• 13

• 12

• 10

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CCSS.1.OA.A.1

Why can't the number 12 be written in the ones place?

• It has two digits

• It is too large

• It is a prime number

• It is an odd number

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CCSS.1.NBT.A.1

What do we do with 10 ones when regrouping?

• Leave them as ones

• Convert them to a ten

• Convert them to a hundred

• Discard them

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is another term used for regrouping in the video?

• Carrying

• Subtracting

• Multiplying

• Borrowing

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

How many ones are left in the ones place after regrouping?

• 0

• 3

• 1

• 2

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of 1 ten, 3 tens, and 2 tens?

• 8 tens

• 5 tens

• 6 tens

• 7 tens

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CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the final sum of 35 and 27?

• 72

• 62

• 82

• 52

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

How many tens and ones make up the final result?

• 7 tens and 2 ones

• 6 tens and 2 ones

• 8 tens and 2 ones

• 5 tens and 2 ones

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5