reference

Number Line

Range:
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

💡 How to Use a Number Line

Addition
Start at first number, jump RIGHT to add
Subtraction
Start at first number, jump LEFT to subtract
📏
Comparing
Numbers to the RIGHT are always greater

📝 Example Problems

5 + 3 = ?
Start at 5, jump right 3 → land on 8
Answer: 8
12 - 4 = ?
Start at 12, jump left 4 → land on 8
Answer: 8

📏Types of Number Lines

  • 0-10/0-20: Basic counting for K-1
  • 0-100: Place value for Grade 1-2
  • -10 to 10: Negative numbers for Grade 3+
  • Fractions: Understanding fractions and decimals

📚 Related Topics