The unit digit of 13² is:

Question

Accepted Answer

D. {'text': '9'}

1. The unit digit of a square depends only on the unit digit of the base.
2. Here the unit digit of 13 is 3.
3. 3 × 3 = 9, so the unit digit of 13² is 9.
4. Direct check: 13² = 169, which ends in 9 ✓.
5. Hence the answer is **9**.
_Source: Selina Concise ICSE Class 8 Mathematics Ch 3 "Squares and Square Roots", Unit digit rules_

Answer

{'text': '1'}

Answer

{'text': '3'}

Answer

{'text': '6'}