Counting and Writing Numbers to 120 — Answer Key
Part A: Multiple Choice
Circle the correct answer for each question.
1. Which number comes right after 99?
A) 98
B) 100
C) 109
D) 90
The number right after 99 is 100 because counting by 1s from 99 gives 100.
2. Which sequence is in the correct counting order?
A) 108, 110, 109, 111
B) 108, 109, 110, 111
C) 111, 110, 109, 108
D) 109, 108, 111, 110
108, 109, 110, 111 is correct because the numbers go up by 1 in proper counting order.
3. What number is missing? 96, 97, 98, ___, 100.
A) 95
B) 99
C) 101
D) 89
Counting by 1s from 98 gives 99, which fills the gap before 100.
4. If you start at 115 and count forward 3, where do you land?
A) 116
B) 117
C) 118
D) 119
Starting at 115 and counting forward 3 gives 116, 117, 118, so you land on 118.
Part B: Fill in the Missing Number
Write the missing number on each line.
1. Count: 98, 99, 100, 101, 102.
Counting by 1s from 99 gives 100.
2. Count: 107, 108, 109, 110, 111.
Counting by 1s from 107 gives 108.
3. 2 more than 118 is 120.
118 + 2 = 120.
4. Count: 89, 90, 91, 92, 93.
Counting by 1s, the number before 90 is 89.
5. Count: 116, 117, 118, 119, 120.
Counting by 1s from 119 gives 120.