Counting by Ones Worksheet
Practice counting by ones with number lines, fill-in-the-blanks, and sequencing activities for second graders.
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Counting by Ones
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Read each question carefully and follow the instructions to practice counting by ones.
Fill in the missing numbers by counting on by ones.
1. 21, 22, 23, , , 26, 27
2. 45, , 47, 48, , 50
3. 78, 79, , 81, , 83
4. , 91, 92, 93, , 95
Look at the number line. What number comes next if you count on by one?
1. What number comes after 15?
2. What number comes after 35?
Count on by ones and write the numbers in order.
Start at 50. Count to 55.
Start at 88. Count to 93.
1. Which number comes immediately after 67 when counting by ones?
66
68
70
57
2. If you start at 98 and count on by one, what is the next number?
97
99
100
88
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