Subtracting by Counting Down to 10

The video tutorial teaches subtraction by counting down to 10. It begins with an introduction using marbles to illustrate subtraction. The lesson reviews different ways to make 10 and demonstrates how counting down can help in subtraction. Examples using 10 frames and practical scenarios with marbles are provided to reinforce the concept. By the end, viewers learn to subtract effectively by counting down to 10.

What is one way to make the number 10 using addition?

• 3 plus 6

• 4 plus 7

• 2 plus 9

• 5 plus 5

If you start at 18 and count down by 3, what number do you reach?

• 10

• 12

• 15

• 8

How can you break down the number 7 to make subtraction easier?

• 4 plus 3

• 3 plus 4

• 6 plus 1

• 5 plus 2

What is the result of 15 minus 6 using the counting down method?

• 8

• 9

• 6

• 7

When subtracting 15 minus 7, what is the first step to simplify the problem?

• Subtract 4

• Subtract 2

• Subtract 5

• Subtract 3