Addition Table for 8
Each row adds 8 to numbers 1 through 12. Addition tables help build number sense and make mental math faster.
Adding 8 keeps parity: even meets even, odd meets odd, all down the sum column. The nearest round ten is 10, just 2 away: 8 + 2 = 10. Every fact runs backward for free: from 8 + 6 = 14 comes the subtraction fact 14 − 8 = 6.
| Addend | Sum |
|---|---|
| 8 + 1 | 9 |
| 8 + 2 | 10 |
| 8 + 3 | 11 |
| 8 + 4 | 12 |
| 8 + 5 | 13 |
| 8 + 6 | 14 |
| 8 + 7 | 15 |
| 8 + 8 | 16 |
| 8 + 9 | 17 |
| 8 + 10 | 18 |
| 8 + 11 | 19 |
| 8 + 12 | 20 |
Frequently asked questions
What are the addition facts for 8?
Adding 8 to each number 1 through 12 gives every fact above, from 8 + 1 = 9 up to 8 + 12 = 20.
What is 8 + 7?
8 + 7 = 15.
What is the fastest way to add 8 mentally?
Split 8 into tens and ones, add the tens first, then the ones. For example 8 + 6 = (8 + 5) + 1 = 13 + 1 = 14.