Understanding Addition and Place Value

This video tutorial teaches how to add 10 to a number using 10 frames and a 100 chart. It reviews place value concepts, counting by tens, and demonstrates adding and subtracting 10 from various numbers. The lesson includes practical examples and exercises to reinforce the concept, emphasizing that the ones digit remains unchanged while the tens digit increases by one.

What does the 2 in the number 25 represent?

• 2 ones

• 20 tens

• 2 tens

• 20 ones

If you start counting by 10s from 5, what number comes after 25?

• 40

• 35

• 45

• 30

What is the result of adding 10 to the number 6?

• 14

• 15

• 16

• 17

Which number has four 10s and one 1?

• 41

• 42

• 14

• 24

What is 17 plus 10?

• 47

• 57

• 37

• 27

When adding 10 to 48, which digit changes?

• Neither digit

• The ones digit

• The tens digit

• Both digits

What is the result of adding 10 to 35?

• 55

• 50

• 45

• 40

If you add 10 to 21, what is the new number?

• 61

• 31

• 41

• 51

What happens to the tens digit when you add 10 to a number?

• It decreases by 1

• It stays the same

• It doubles

• It increases by 1

What is 59 plus 10?

• 60

• 69

• 79

• 70