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Multiplication of two numbers that differ by 6 (This trick only works if you have memorized or can quickly calculate the squares of numbers. If the two numbers differ by 6 then their product is the square of their average minus 9. Let me explain this rule by taking examples 10*16 = 13^2 - 9 = 160 22*28 = 25^2 - 9 = 616

```
6 years ago

Nishant Vora
IIT Patna
2467 Points
```							The Explanation is simple10*16 = (13-3)*(13+3) = Hence Proved_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
```
6 years ago
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### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions