Count to 20 — Answer Key
Part A: Multiple Choice
Circle the correct answer for each question.
1. What number comes right after 13?
A) 11
B) 12
C) 14
D) 15
Counting forward from 13: the next number is 14.
2. Which number is missing? 7, 8, ___, 10.
A) 6
B) 9
C) 11
D) 5
Counting in order: 7, 8, 9, 10. The missing number is 9.
3. Which list shows numbers in the correct counting order?
A) 15, 17, 16, 18
B) 15, 16, 17, 18
C) 18, 17, 16, 15
D) 16, 15, 18, 17
15, 16, 17, 18 is in correct counting order — each number increases by 1.
4. If you start at 16 and count forward 3, where do you land?
A) 17
B) 18
C) 19
D) 20
16 + 3 = 19. Counting forward 3 from 16: 17, 18, 19.
Part B: Fill in the Missing Number
Write the missing number on each line.
1. Count: 9, 10, 11, 12, 13.
Counting in order: 9, 10, 11, 12, 13. The missing number is 12.
2. Count: 14, 15, 16, 17, 18.
Counting in order: 14, 15, 16, 17, 18. The missing number is 15.
3. 1 more than 17 is 18.
17 + 1 = 18. One more than 17 is 18.
4. Count: 5, 6, 7, 8, 9, 10.
Counting in order starting from 5: 5, 6, 7, 8, 9, 10. The missing number is 5.
5. Count: 16, 17, 18, 19, 20.
Counting forward from 19: the next number is 20, completing the count to 20.