Use this page when you want one step equations addition subtraction worksheets in the next thirty seconds: choose how many problems you want, press print, and the answer key comes out on its own page behind the worksheet. The version loaded below opens with items in the shape of x + 18 = 38, x and x − 4 = 10, x; the key lists 20 and 14 next to their question numbers.
‘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.
Checking is trivial and almost always skipped: substitute the answer back and see whether the two sides really are equal.
This sheet uses solutions from 3 to 20, so the arithmetic never gets in the way of the reasoning.
A one-step equation asks what value makes the two sides balance. Solving x + 18 = 38, x gives 20, and the method — undo the operation on both sides — is the foundation of everything algebraic that follows.
Because each sheet is new, the child solves rather than recalls, and the operation to undo changes from line to line.
These one step equations addition subtraction worksheets are commonly aligned with the expressions and equations strand for grade 6, and the skill appears in most curricula somewhere around this point.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | x + 18 = 38, x = | 20 | Watch for: dividing when the variable is added, not multiplied |
| 2 | x − 4 = 10, x = | 14 | Check: losing a negative sign in the rearrangement |
| 3 | x + 11 = 15, x = | 4 | Look at: solving by inspection and getting lucky |
| 4 | x + 8 = 18, x = | 10 | Ask about: using the same operation instead of the inverse |
| 5 | x − 3 = 9, x = | 12 | Watch for: not substituting back |
| 6 | x + 7 = 12, x = | 5 | Check: operating on one side only |
Try x + 11 = 15, x together before letting the child start alone. The answer to x + 11 = 15, x is 4, and talking through how it was reached takes about a minute and saves several minutes of guessing later in the sheet.
A good first problem to do together is x + 18 = 38, x, which comes out at 20. Do x + 18 = 38, x once with the child narrating, then hand over the pencil and start the clock on the other 20 problems.
Answers appear next to their question numbers, so a wrong item like x − 4 = 10, x can be found in the key in a second and re-worked while it is still fresh.
Keys are produced by the same code that produces the questions, so a mismatch between question and answer is not possible on these sheets.
To save these one step equations addition subtraction 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.
The sheet is laid out to fit one page on both US Letter and A4. Leave the browser scaling at 100% and turn headers and footers off, and the 20 problems land inside the margins on either paper size.
When these become easy, move along the related links below rather than adding more problems to the same sheet.
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