Free worksheets · Kindergarten
100 Chart with 20 Missing Numbers Worksheet
Fill in the 20 empty boxes on a 100 chart that runs from 1 to 100 in rows of ten.
Free printable
100 Chart with 20 Missing Numbers
1 questions, one page, US Letter. Print it and do it on paper.
On the sheet: Fill each empty box. Each row has ten numbers, from 1 through 100.
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About this worksheet
The chart has ten rows of ten numbers, from 1 to 100. Twenty boxes are empty, and some gaps sit side by side, so the child sometimes has to count on two or three numbers in a row.
A 100 chart shows the patterns in our numbers: across a row the ones go up by one, and down a column every number is ten more. Filling the gaps means using those patterns, which builds the number sense children use for adding and subtracting tens.
A worked example
Row 3: 21, 22, 23, ☐, ☐, ☐, 27, ☐, ☐, 30
- Start at 23 and count on: 24, 25, 26.
- Check that 26 is just before 27.
- Count on from 27: 28, 29.
- Check that 29 is just before 30, then write the numbers in the boxes.
Answer: 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
The common mistake
What it looks like: Skipping or repeating a number in a run of empty boxes, so the row ends off by one.
Why it happens: With several gaps together, the child loses track of where the counting started.
How to fix it: Touch each empty box as you say its number, and check that the last one written sits right before the next printed number. Columns help too: every number in a column ends in the same digit.
Ten minutes a day, on paper. We plan what comes next.
A printed page and a pencil. No screen, no login for your child. Snap a photo when they’re done: AI scores it, and what they missed comes back on the sheets that follow.
- Mon 100 Chart with 20 Missing Numbers
- Tue What they missed, back again
- Wed The next step, when they’re ready
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