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🧮 Shortcut: Find Square of Numbers Ending in 5
Calculate 75² in 2 seconds! Multiply the first digit by (first digit + 1), then append 25.
1 min1,250
18 Jan 2026⚡
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Short facts, formulas, and tips in 2 minutes
3 articles
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📅 Remember: Important Days in January
Jan 12: National Youth Day | Jan 15: Army Day | Jan 23: Netaji Jayanti | Jan 26: Republic Day
1 min980
15 Jan 2026⚡
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🔢 Quick Trick: Divisibility Rules 7, 11, 13
Check if 91 is divisible by 7 in seconds! Remove last digit, double it, subtract from remaining number.
2 min1,100
14 Jan 2026