🧮 Adding 1-Digit Numbers
Master Basic Addition Facts • Fun & Interactive
Adding 1-digit numbers is the foundation of all math. When you add two numbers from 0-9, you’re building mental math fluency. Practice makes perfect! Try these sums: 3+4, 7+2, 5+5. Ready to test your skills?
What is Adding 1-Digit Numbers?
Adding 1-digit numbers means combining two numbers that are each between 0 and 9. For example, 6 + 3 = 9. It’s the first step in learning addition!
How to Add 1-Digit Numbers
Step 1: Start with the first number (e.g., 4)
Step 2: Count up the second number (e.g., count up 5 from 4)
Step 3: The number you land on is your answer (4+5=9)
Examples of Adding 1-Digit Numbers
2 + 3 = ?
Start at 2, count up 3: 3, 4, 5 → 5
6 + 2 = ?
Start at 6, count up 2: 7, 8 → 8
8 + 1 = ?
Start at 8, count up 1 → 9
Adding 1-Digit Numbers with Sums Up to 10
When the total is 10 or less, it’s called basic facts. Examples: 4+3=7, 2+5=7, 6+4=10. These are the building blocks!
Adding 1-Digit Numbers with Sums Above 10
- 8 + 5 = 13 (make a ten: 8+2=10, then +3=13)
- 7 + 6 = 13 (7+3=10, then +3=13)
- 9 + 4 = 13 (9+1=10, then +3=13)
🎯 Practice Adding 1-Digit Numbers
25 random questions • Timer starts when you begin
Why Adding 1-Digit Numbers Matters
Adding 1-digit numbers is the foundation for all math. From shopping to cooking to advanced math, everything builds on these basic facts. Mastery here makes everything else easier!
The Math Behind Addition Facts
❓ Frequently Asked Questions
📚 More Mental Math Skills
📥 Free Addition Worksheets
100+ practice problems with answer key
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