Mastering Two-Digit Addition Techniques

In this video, Ashley introduces the concept of two-digit addition without regrouping. She emphasizes the importance of understanding place value before proceeding with addition. The video includes two examples: adding 14 and 4, and adding 10 and 25, with detailed explanations of each step. Ashley encourages viewers to practice with online games and quizzes and to continue learning with subsequent videos in the series.

Why is it important to understand place value in addition?

• It helps in aligning the numbers correctly.

• It makes addition faster.

• It is not necessary for addition.

• It helps in subtraction only.

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CCSS.2.NBT.B.7

How do you correctly line up numbers for addition?

• Alphabetically

• By their place value

• Randomly

• By their value

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

In the addition of 14 and 4, which digit is in the ones place?

• 8

• 4

• 1

• None

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CCSS.7.NS.A.1C

What is the sum of 14 and 4?

• 22

• 20

• 18

• 16

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CCSS.1.OA.A.1

What should you do after finding the final answer in an addition problem?

• Multiply it

• Ignore it

• Erase it

• Box it

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the result of adding 10 and 25?

• 45

• 35

• 15

• 25

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CCSS.2.OA.A.1