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-<p>
- Quick multiplication by 9 and 99 means that when multiplying numbers by 9 or 99
- <br />
- the product is coming automatically without using a calculator.
- <br />
- <br />
- <span style="text-decoration: underline; font-weight: bold;">
-  Examples
- </span>
- :
- <br />
- <br />
- 1)84 x 9 =(84 x 10) - 84
- <br />
- =840-84
- <br />
- =756
- <br />
- <br />
- 2)84 x 99 =(89 x 100) -84
- <br />
- =8900 -84
- <br />
- =8316
- <br />
- <br />
- <span style="text-decoration: underline; font-weight: bold;">
-  rules
- </span>
- :
- <br />
- 1.To multiply numbers by 9,first multiply by 10 and subtract that number(multicand)
- <br />
- <br />
- 2.To multiply number by 99,first multiply by 100 and subtract that number(multicand)
-</p>
-\ No newline at end of file