Trick Guide

💡 Cubes

Cube last-digit rule

Cube root / cube guess ke liye last digit

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🧠 Trick Drill

Steps

  1. Last digit map yaad karo: 1→1, 2→8, 3→7, 4→4, 5→5, 6→6, 7→3, 8→2, 9→9, 0→0.
  2. Cube ke last digit se original number ka last digit guess karo.
  3. Bade numbers mein pehle last digit fix karo, phir range check karo.

Worked example

∛343 ends with?

343 ends with 3 → cube ends 7 rule → units digit 7

Answer: 7 (so 7³ = 343)

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