Number puzzles
Practise equations with blanks, short number clues, and inverse operations across grade 4 number ranges.
How to solve this
- A blank in multiplication can be found by division: __ × 4 = 48 means 48 ÷ 4.
- A blank in addition can be found by subtraction: if 4700 + __ = 5000, then 5000 - 4700.
- Always put the found number back into the original puzzle; this catches answers that only fit part of the clue.
Examples
__ × 4 = 48
12
4700 + __ = 5000
300
840 ÷ 2
420
Practice problems with answers
Solve these problems on paper or out loud, then check the answer key. The online practice and the printable worksheet give a new set every time.
- 11 × ___ = 176
- The number exactly halfway between 7 500 and 7 600: ___
- The number exactly halfway between 4 500 and 4 600: ___
- The number exactly halfway between 5 500 and 5 600: ___
- 4 500 + 100 = ___
- 1 470 : 2 = ___
- 7 100 + 500 = ___
- 546 : 2 = ___
Show answers
- 16
- 7 550
- 4 550
- 5 550
- 4 600
- 735
- 7 600
- 273