Instructions
Fill in the blanks with the missing numbers! Look at the pattern and decide what number goes in each empty space.
| 1, | 2, | ___ | , | 4 |
| 5, | ___ | 7, | , | 9 |
| 10, | 11, | ___ | , | 13 |
| 14, | ___ | 16, | , | 18 |
Extra Practice
What comes after 1? Write the number here: _______
What comes before 5? Write the number here: _______