Addition Strategies and Number Bonds

The video tutorial introduces the concept of number bonds as a strategy to simplify addition by breaking numbers into smaller parts to make a multiple of 10. It provides three examples: adding 29 and 16, 48 and 35, and 67 and 28, demonstrating how to decompose numbers to make addition easier. The method emphasizes mental math and understanding place value.

What is a number bond?

• A strategy to subtract numbers

• A method to multiply numbers

• A way to decompose a number into two smaller parts

• A technique to divide numbers

Why is making a multiple of 10 considered a 'friendlier' number?

• Because it is easier to multiply

• Because it is easier to add

• Because it is easier to subtract

• Because it is easier to divide

In the example of 29 + 16, what number is added to 29 to make it a multiple of 10?

• 1

• 3

• 2

• 4

After making 29 a multiple of 10, what is left from 16?

• 17

• 16

• 14

• 15

What is the final sum of 29 + 16 using number bonds?

• 44

• 45

• 46

• 47

In the example of 48 + 35, how many are taken from 35 to make 48 a multiple of 10?

• 1

• 2

• 3

• 4

What is the new number formed when 2 is added to 48?

• 51

• 49

• 50

• 52

What is the final sum of 48 + 35 using number bonds?

• 81

• 82

• 84

• 83

In the example of 67 + 28, how many are taken from 28 to make 67 a multiple of 10?

• 5

• 2

• 3

• 4

What is the new number formed when 3 is added to 67?

• 71

• 70

• 69

• 68