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BEGINNERNumber Properties
Identify Perfect Square Roots
Instantly identify if a number is a perfect square and find its root
SSCIBPS
Perfect squares can only end in 0, 1, 4, 5, 6, or 9
How It Works
0
Numbers ending in 2, 3, 7, 8 are NEVER perfect squares
1
For 4-digit perfect square: Split into pairs from right
2
Left pair gives first digit of root
3
Last digit determines last digit of root
Examples
📝 √2704: 27|04 → √27≈5 → root is 50-something. Ends in 4 → 52 or 58. 52²=2704 ✓
📝 √7569: 75|69 → √75≈8 → root is 80-something. Ends in 9 → 87. 87²=7569 ✓
Pro Tips
💡 If ends in 1 → root ends in 1 or 9
💡 If ends in 4 → root ends in 2 or 8
💡 If ends in 6 → root ends in 4 or 6
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