Exploring Addition and Subtraction Concepts

The video tutorial reviews the concepts of 10 more and 10 less using a number grid up to 120. It explains how to identify patterns when counting by tens, both increasing and decreasing. The tutorial provides examples with numbers like 63, 35, 107, and others, demonstrating how to calculate 10 more, 10 less, one more, and one less. Students are encouraged to practice these concepts with various numbers, reinforcing their understanding of how digits in the tens and ones places change.

What does 'ten more' signify on a number grid?

• Moving right one column

• Moving up one row

• Moving down one row

• Moving left one column

If you are at number 40 on a number grid, what number will you reach if you go 'ten less'?

• 20

• 30

• 50

• 60

Starting at number 63, what number is 'ten more'?

• 43

• 83

• 53

• 73

What is 'one less' than 26?

• 25

• 26

• 24

• 27

What is 'one more' than 26?

• 26

• 24

• 27

• 25

Calculate 'ten less' than 45.

• 25

• 65

• 55

• 35

What number is 'ten more' than 18?

• 38

• 10

• 28

• 8

If you start at 105, what is 'ten less'?

• 95

• 85

• 115

• 105

Starting at 60, what number do you get with 'ten more'?

• 50

• 70

• 40

• 80

What is 'one more' than 105?

• 107

• 105

• 106

• 104