Formula Rearranger
Practise rearranging equations for a requested unknown variable using inverse algebra operations in real formula examples.
Math puzzle
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Instructions, device progress and accessibility
Choose Easy, Normal or Hard. Select Practice or the daily puzzle (UTC). Complete every algebra field, then choose Check answer. Hints and Undo mark the round as assisted. Progress stays on this device; daily puzzles reset at 00:00 UTC.
Local progress is checked when play begins.
How to play Formula Rearranger
Practise rearranging equations for a requested unknown variable using inverse algebra operations in real formula examples. Choose a difficulty, work through each puzzle and enter exact values or select the correctly rearranged formula. The free Daily and Practice modes keep progress on your device.
Worked algebra example
For v = d / t, multiply both sides by t: d = vt. So the isolated form is v × t.
Key formulas and common mistakes
Apply the same reversible algebra operation to both sides. If P = 2(l + w), then w = P/2 − l.
Frequently asked questions
Is formula rearranging the same as solving an equation?
Yes, except the unknown is a symbolic variable rather than a specific number.
What if a formula includes squares or division?
Undo operations in the correct order and account for nonzero denominators.