Key Stage 2 · Algebra
Mystery Numbers
Choose a level. Each round has 10 questions, and you can ask me for hints any time!
1
Times and divide puzzles
Find the missing number in □ × 6 = 42.
Years 3–4
🖨 Printable worksheet
2
Bigger numbers
Adding and taking away with 3-digit numbers.
Years 3–4
🖨 Printable worksheet
3
Two-step puzzles
Work backwards, like 3 × □ + 4 = 19.
Years 5–6
🖨 Printable worksheet