If you need times tables missing numbers worksheets that you can print right now, this page builds them for you — 20 fresh problems, an answer key underneath, and no account to create first. Right now the generator is set to problems such as □ × 4 = 12 (answer 3) and □ × 12 = 120 (answer 10); 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.
These problems are the first real algebra a child meets. The empty box is a variable in everything but name, and children who are comfortable with □ × 12 = 120 tend to find equations far less strange two or three years later.
The sheet uses facts to 12 with one factor hidden, so the difficulty is the reasoning, not the arithmetic.
A missing-number problem such as □ × 4 = 12 asks the child to work backwards, and that is a genuinely different skill from computing forwards. The answer 3 cannot be reached by reading left to right and doing what the sign says.
The sheet mixes the position of the missing value, so the box sometimes sits in the first slot and sometimes in the answer slot. Children who have only met one arrangement usually stall on the other.
Work of this kind is commonly aligned with the operations and algebraic thinking strand for this grade; schools outside the US meet the same skill at roughly the same age, which is why these times tables missing numbers worksheets travel well.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | □ × 4 = 12 | 3 | Watch for: using the same operation instead of the inverse |
| 2 | □ × 12 = 120 | 10 | Check: treating the equals sign as 'the answer comes next' |
| 3 | □ × 6 = 18 | 3 | Look at: guess-and-check without adjusting |
| 4 | 9 × □ = 54 | 6 | Ask about: freezing when the box is first |
| 5 | 5 × □ = 10 | 2 | Watch for: ignoring the box and computing the two visible numbers |
| 6 | 3 × □ = 12 | 4 | Check: writing the whole equation as the answer |
Work 9 × □ = 54 out loud as a demonstration. It gives 6. Children who hear 9 × □ = 54 reasoned through once at the start of a session make noticeably fewer errors in the ten minutes that follow.
Take the first problem on the sheet as it stands, □ × 4 = 12. Work □ × 4 = 12 out on paper rather than in your head the first few times, say each step aloud, and check the result against 3 on the key before moving on.
The answer key is generated with the worksheet, not written by hand, so it always matches the sheet in front of you — □ × 4 = 12 is listed as 3, □ × 12 = 120 as 10, and so on down the page.
The key prints on its own page by default. Uncheck the answer-key box before printing if you would rather keep it back and mark the sheet yourself.
If the problems look cramped, drop the count from 20 to a smaller number before printing these times tables missing numbers worksheets; the font stays the same size and the spacing opens up.
For a class set, print one sheet, press the new-worksheet button and print again. Each child gets different numbers on the same skill, so nobody can copy the answer to □ × 4 = 12 from a neighbour.
One sheet of times tables missing numbers worksheets a day for two weeks will tell you more about where a child working at this level actually stands than any single long assessment.
→ Free Times Tables 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