Counting & Writing Numbers to 120 — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which is missing? 107, 108, ___, 110, 111
A) 106
B) 112
C) 109
D) 105
The correct answer is C) 109. The number between 108 and 110 is 109 because 108 + 1 = 109.
2. Count by tens: 30, 40, 50, 60, ___?
A) 65
B) 80
C) 100
D) 70
The correct answer is D) 70. When counting by tens, you add 10 each time, so 60 + 10 = 70.
3. What is 10 less than 115?
A) 114
B) 110
C) 105
D) 100
The correct answer is C) 105. To find 10 less, subtract 10 from 115: 115 - 10 = 105.
4. Which shows the correct order?
A) 118, 117, 119, 120
B) 117, 118, 119, 120
C) 120, 119, 117, 118
D) 117, 119, 118, 120
The correct answer is B) 117, 118, 119, 120. These numbers go in order because each one is 1 more than the last.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Count backward: 120, 119, 118, 117
When counting backward, you subtract 1 each time, so 118 - 1 = 117.
2. What is 10 more than 95? 105
Adding 10 to 95 gives you 105 because 95 + 10 = 105.
3. Fill in: 111, 112, 113, 114
The missing number is 112 because counting by ones goes 111, 112, 113, 114.
4. What is between 98 and 100? 99
The number between 98 and 100 is 99 because 98 + 1 = 99 and 99 + 1 = 100.
5. Count by fives: 85, 90, 95, 100
When counting by fives, you add 5 each time, so 95 + 5 = 100.