Count Backward by 2s, 5s and 10s

What is Backward Skip Counting?

• Backward skip counting is counting down from a larger number to a smaller number by "jumping" over numbers.
• It is just like skip counting forward, but you go down the number line instead of up.
• This is a great way to practice subtraction and understanding number patterns.

1. Counting Backward by 2s When we count backward by 2s, we subtract 2 from each number. We land on only Even numbers if we start from an even number.

• The Pattern: 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0.

2. Counting Backward by 5s Counting backward by 5s is like a countdown. Every number will still end in a 5 or a 0.

• The Pattern: 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 0.

3. Counting Backward by 10s This is the fastest way to get back to zero from a big number! Only the "tens" digit changes; the "ones" digit stays 0.

• The Pattern: 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 0.

Why Do We Learn This?

• Subtraction: It helps you subtract 2, 5, or 10 in your head without using your fingers.
• Problem Solving: It helps you understand how much is "left" when things are taken away.
• Time: It helps you count minutes backward on a clock (like "10 minutes until lunch").

Lesson Summary

• Counting Backward means the numbers get smaller.
• By 2s: 10, 8, 6, 4, 2...
• By 5s: 25, 20, 15, 10...
• By 10s: 40, 30, 20, 10...