Cubes of 2-digit numbers — Vedic maths trick

The trick

Anurupyena — “proportionately”

1. Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a).
2. Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³.
3. Combine from the right with carries.

Use it for: Cubes of 11 to 99 (and checking cube-root answers from trick 10).

Worked example: 23³ = 12167

✏️ Practice

Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.

🏁 Trick 17 test

20 sums. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 🎲 Cube Builder badge when you pass — and a certificate when you finish all 10 tricks of Part 2 · Advanced tricks. You can still take the test without signing in.

🖨️ Cubes of 2 Digit Numbers Worksheet

• Worksheet set 1 (PDF)
• Worksheet set 2 (PDF)
• Worksheet set 3 (PDF)