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Fill in the Operator or Number

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Common settings

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⚠ Set print scaling to 100% / "Actual size" and turn off "Fit to page", otherwise dimensions will be off. For exact results, download the PDF instead.
Name __________Class __________Date __________Time ______minScore ____/301. 6 - □ = 32. □ + 5 = 63. □ - 4 = 24. 6 + □ = 155. 3 + □ = 46. 8 - □ = 67. 3 + □ = 58. □ - 3 = 49. 9 - □ = 510. 7 - □ = 711. □ + 2 = 1112. □ - 7 = 213. 3 + □ = 1014. □ + 6 = 1015. 4 - □ = 316. 9 - □ = 117. □ - 3 = 518. □ - 1 = 519. 6 - □ = 120. □ + 9 = 1221. 6 - □ = 522. 4 + □ = 1123. 1 - □ = 124. □ - 5 = 025. 1 + □ = 826. □ - 5 = 227. 2 + □ = 628. □ - 3 = 129. □ + 4 = 1030. □ - 1 = 6
215.9 × 279.4 mm · 1 pages

Template settings

Fill in the Operator or Number

Grade preset
Difficulty
Layout
Answers & header

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About Fill in the Operator or Number

Three problem types: fill in the operator, fill in the missing number, and "largest number that fits". Practise one type or mix them all.

Read the full guide to Fill in the Operator or Number: details, usage and FAQ

Typical uses

  • Inverse thinking with operators and equations
  • Missing-number work that prepares pupils for algebra
  • Times-table recall and largest-fit problems
  • Reworking mistakes and timed drills

FAQ

Which grades suit each type?

Missing numbers work from grade 1; missing operators usually come once multiplication and division are known (late grade 2 to grade 3); largest-fit problems are typically grade 4. The presets follow that order, and you can always override them.

Why are the printed dimensions wrong?

If your print dialogue has "Fit to page" enabled or scaling below 100%, the whole grid is scaled down. Set scaling to 100% / "Actual size", and tick the calibration ruler in the generator, then measure the 5 cm mark with a ruler. PDF dimensions are locked in the file, so they are the safest option.

Does anything I type or upload get sent to a server?

No. Generation, preview and export all happen inside your browser. Nothing is uploaded and no account is needed.

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