The worksheet generator on this page produces skip counting by 100 worksheets with real, freshly randomised numbers — 20 of them per sheet by default — plus the answer key a parent or teacher needs to mark it quickly. Right now the generator is set to problems such as 200, 300, 400, □, □ (answer 500, 600) and 100, 200, 300, □, □ (answer 400, 500); press the button again and the numbers change while the skill stays the same.
‘New set of problems’ opens the generator in its own tab. There you can change the problem count and turn the answer key on or off. ‘Print or save as PDF’ opens the print dialog — choose Save as PDF in the printer list to keep the file. The sheet fits US Letter and A4, and the answer key prints on its own page.
Sequences here start from varied points rather than always from the step size, which is what stops the exercise from becoming a recitation — see 100, 200, 300, □, □.
Each row asks for two more terms — 500, 600 completes 200, 300, 400, □, □ — so the step has to be applied twice and the second one cannot be luck.
The pattern is what matters here, not the arithmetic. Children who can extend 100, 200, 300, □, □ without adding each step have internalised the step size, and that is the point at which the matching table becomes easy.
Skip counting is multiplication before the word is introduced. A sequence like 200, 300, 400, □, □, continued correctly to 500, 600, is the times table arriving through the front door instead of by memorisation.
Teachers usually place skip counting by 100 worksheets alongside the counting sequence and multiplication readiness expectations for this grade, which is where the skill sits in the majority of US state frameworks.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 200, 300, 400, □, □ | 500, 600 | Watch for: reversing direction |
| 2 | 100, 200, 300, □, □ | 400, 500 | Check: adding the wrong step after the first term |
| 3 | 700, 800, 900, □, □ | 1000, 1100 | Look at: writing only one of the two missing terms |
| 4 | 600, 700, 800, □, □ | 900, 1000 | Ask about: restarting the sequence from zero |
| 5 | 400, 500, 600, □, □ | 700, 800 | Watch for: counting on by ones under their breath |
| 6 | 500, 600, 700, □, □ | 800, 900 | Check: losing the pattern across a hundred boundary |
Here is one worked through. 100, 200, 300, □, □ gives 400, 500. If your child arrives somewhere other than 400, 500 on 100, 200, 300, □, □, look at the working rather than the answer: nearly every wrong result comes from a skipped step, not an unknown fact.
Try 700, 800, 900, □, □ together before letting the child start alone. The answer to 700, 800, 900, □, □ is 1000, 1100, and talking through how it was reached takes about a minute and saves several minutes of guessing later in the sheet.
The answer key is generated with the worksheet, not written by hand, so it always matches the sheet in front of you — 200, 300, 400, □, □ is listed as 500, 600, 100, 200, 300, □, □ as 400, 500, and so on down the page.
Answers appear next to their question numbers, so a wrong item like 100, 200, 300, □, □ can be found in the key in a second and re-worked while it is still fresh.
To save these skip counting by 100 worksheets instead of printing them, choose 'Save as PDF' in the printer list. You get the worksheet and the answer key as a single PDF, on Letter or A4 depending on your printer settings.
Portrait orientation is what the sheet is designed for. Landscape works but wastes about a third of the paper, so leave the orientation alone unless you have a reason.
Keep the finished skip counting by 100 worksheets in date order — the drop in time across ten sheets is the clearest progress report you will get.
→ Free Skip Counting Worksheets
Free printable math worksheets from a working math academy director in Korea. Problems come from our own code, not from a published workbook. Every sheet prints on US Letter or A4 with its answer key. All worksheets · Worksheet generator · Korean site
Last updated: 2026-09-13