Break Apart Addends: Tens and Ones Concepts

The video tutorial teaches second graders how to break apart addends into tens and ones to simplify addition. It provides examples with numbers like 27 + 15 and 34 + 47, demonstrating how to write numbers in expanded form. Students are encouraged to practice with 49 + 13 and are given a homework assignment to reinforce the lesson.

How do we write 15 in expanded form?

• 15 + 0

• 10 + 5

• 100 + 50

• 1 + 5

What is the result of adding 7 and 5?

• 57

• 75

• 12

• 13

What is the sum of 20 and 10?

• 20

• 2010

• 30

• 210

What is 27 in expanded form?

• 2 + 7

• 20 + 7

• 200 + 70

• 27 + 0

What does breaking apart addends help us find?

• The product of numbers

• The division of numbers

• The difference of numbers

• The sum of numbers

What is 34 in expanded form?

• 30 + 4

• 34 + 0

• 3 + 4

• 300 + 40

What is the sum of 30 and 40?

• 70

• 3040

• 34

• 74

How do we correctly add 49 and 13 by breaking them into tens and ones?

• 40 + 10 + 9 + 3

• 4 + 1 + 9 + 3

• 490 + 130

• 49 + 13

What is the correct sum of 49 plus 13?

• 52

• 610

• 4913

• 62

Which of the following is NOT a strategy mentioned for addition?

• Drawing a picture

• Breaking apart tens and ones

• Using a calculator

• Counting on