Count to 20 — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which number comes right after 15?
A) 14
B) 17
C) 16
D) 13
When you count, 16 is the next number after 15.
2. What is the missing number: 8, 9, ___, 11?
A) 12
B) 7
C) 10
D) 13
When you count in order, the numbers go 8, 9, 10, 11. The missing number is 10.
3. Which number comes just before 20?
A) 18
B) 20
C) 17
D) 19
When you count up to 20, the number right before it is 19.
4. Count backward: 14, 13, ___. What number is missing?
A) 15
B) 11
C) 12
D) 10
When counting backward, each number is 1 less. After 13 comes 12.
Part B: Fill in the Blank
Write the correct answer on each line.
1. The number that is 2 more than 16 is 18.
Start at 16 and count 2 more to reach 18.
2. Count backward: 20, 19, 18, 17.
When counting backward, each number is 1 less than the one before it. The next number is 17.
3. The number between 4 and 6 is 5.
5 comes between 4 and 6 because it is 1 more than 4 and 1 less than 6.
4. Start at 11 and count 3 more: 11, 12, 13, 14.
Start at 11 and count 3 more: 12, 13, 14. The next number is 14.
5. The number that is 1 less than 10 is 9.
Start at 10 and count back 1 to reach 9.