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 are some ways to make 10 using addition?

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