Addition Table for 20
Each row adds 20 to numbers 1 through 12. Addition tables help build number sense and make mental math faster.
Adding 20 keeps parity: even meets even, odd meets odd, all down the sum column. The nearest round ten is 20 itself. Every fact runs backward for free: from 20 + 6 = 26 comes the subtraction fact 26 − 20 = 6.
| Addend | Sum |
|---|---|
| 20 + 1 | 21 |
| 20 + 2 | 22 |
| 20 + 3 | 23 |
| 20 + 4 | 24 |
| 20 + 5 | 25 |
| 20 + 6 | 26 |
| 20 + 7 | 27 |
| 20 + 8 | 28 |
| 20 + 9 | 29 |
| 20 + 10 | 30 |
| 20 + 11 | 31 |
| 20 + 12 | 32 |
Frequently asked questions
What are the addition facts for 20?
Adding 20 to each number 1 through 12 gives every fact above, from 20 + 1 = 21 up to 20 + 12 = 32.
What is 20 + 7?
20 + 7 = 27.
What is the fastest way to add 20 mentally?
Split 20 into tens and ones, add the tens first, then the ones. For example 20 + 6 = (20 + 5) + 1 = 25 + 1 = 26.