⚡ Quick Bytes⚡ Quick Byte

🧮 Shortcut: Find Square of Numbers Ending in 5

Calculate 75² in 2 seconds! Multiply the first digit by (first digit + 1), then append 25.

Rajesh Kumar

Mathematics Expert

18 Jan 20261 min read1,250 views

The Trick

For any number ending in 5:

Take the digit(s) before 5

Multiply by (itself + 1)

Append 25

- 25² = 2 × 3 = 6, append 25 → 625

- 75² = 7 × 8 = 56, append 25 → 5625

- 125² = 12 × 13 = 156, append 25 → 15625

Try it yourself! 🚀

Mathematics Expert

Expert faculty at Magizhan Academy, helping thousands of aspirants crack government exams.