PencilGoGrade 1 · Math · Number sense
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Grade 1 Math Worksheet
Write the missing number.
115, 114, , 112, 111
57, , 55, 54, 53
, 116, 115, 114, 113
25, 24, 23, , 21
74, , 72, 71, 70
119, 118, 117, , 115
67, 66, , 64, 63
53, , 51, 50, 49
90, 89, 88, , 86
101, 100, 99, 98,
61, 60, , 58, 57
32, 31, 30, , 28
113, 112, 111, , 109
103, 102, , 100, 99
110, 109, 108, 107,
108, 107, , 105, 104
42, , 40, 39, 38
106, 105, , 103, 102
Counting forward is usually the first counting skill a child masters, and counting backward is the one that tends to be shaky, because the number names have to be held in reverse order. It is also the first step toward subtracting by counting back. On this grade 1 worksheet each line shows a short row of numbers that count down, with one number missing, and your child writes the missing number on the line.
The gap can be first, in the middle or last, so your child cannot just add one to the last number they see. Support sheets stay within 40, while standard and challenge sheets spend at least half of their rows counting back from the numbers between 101 and 120, down through 100. Say the row out loud together before writing.
Common Core standard: 1.NBT.A.1
The row is 24, 23, ____, 21, 20. Each number is 1 less than the one before, so the missing number is 22.
Counting forward by habit and writing the number that is 1 more than the last number shown.
Say the row out loud from the left, going down, and stop at the gap.
Counting forward by habit and writing the number that is 1 more than the last number shown.
Say the row out loud from the left, going down, and stop at the gap.
Yes. All 6 printable versions on this page are free to download and print, with no account needed.
Similar: Count, Read, and Write to 120 · Tens and Ones
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