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17 Tricks for Quick Multiplication

Education

17 Tricks for Quick Multiplication

Here we list some amazing rules of multiplication, which will surely help you and perceive in fast calculation.

By Admin 08th Dec, 2015 04:52 pm

Here we list some amazing rules of multiplication, which will surely help you and perceive in fast calculation.

1. While Multiplying by 5: Multiple first by 10 and then divide by 2.

2. While Multiplying by 6: Multiply by 3 and then by 2, which is very easy to do.

3. While Multiplying by 9: Multiply by 10 and then subtract the product by the original number.

4. While Multiplying by 12: Multiply by 10 and add twice the original number.

5. While Multiplying by 13: Multiply by 3 and by 10 separately and then add the result of both the multiplication. For example; 572 X 13= (572 X 3) + (572 X 10) = 1716 + 5720= 7436

6. While Multiplying by 14: Multiply by 7 and the multiply by 2

7. While Multiplying by 15: Multiply by 10 and then add 5 times the original number or use the multiplication trick of 5 and then add both the resultant numbers.

8. While Multiplying by 16: You can double the number four times. Or you can multiply by 8 and then by 2.

9. While Multiplying by 17: Multiply by 7 and then add 10 times the original number (same as the multiplication trick of number 13).

10. While Multiplying by 18: Multiply by 20 and subtract twice the original number.

11. While Multiplying by 19: Multiply by 20 and subtract the original number.

12. While Multiplying by 24: Multiply by 8 and then multiply by 3.

13. While Multiplying by 27: Multiply by 30 and subtract thrice the original number.

14 While Multiplying by 45: Multiply by 50 and subtract 5 times the original number.

15. While Multiplying by 90: Multiply by 9 (follow the multiplication trick of 9) and put a zero in the units place.

16. While Multiplying by 98: Multiply by 100 and subtract twice the original number.

17.  While Multiplying by 99: Multiply by 100 and subtract the original number.

Also Read: Vedic Math Tricks for You

Tejal Mistry

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