Count Backwards 20-1

Master counting backwards from 20 to 1! This interactive activity helps first graders develop strong reverse counting skills with larger numbers. Counting backwards from 20 builds number sense, reinforces understanding of teen numbers, and prepares kids for subtraction with bigger numbers.

Practice these skills:

• Count backwards in sequence from 20 to 1
• Fill in missing numbers in backwards counting sequences
• Count backwards starting from any number (not just 20)
• Understand teen numbers when counting backwards (19, 18, 17…)
• Build foundation for subtraction with numbers up to 20

How it works: Look at the backwards number sequence, find the missing numbers, and drag them into the correct spots. You’ll get instant feedback on every answer!

Tips for success: When counting backwards from 20, remember the teen numbers go: 19, 18, 17, 16, 15, 14, 13, 12, 11, 10. Think “one less” each time!

Aligned with U.S. Grade 1 Math Standards (1.NBT.A.1).