Question

Using shortcut to determine $2723\times 9999$.

Answer 1

Step I - Let's split $9999$ into $(10000-1)$ to use distributive property over subtraction.

$2723\times 9999$ = $2723\times (10000-1)$ = $2723\times 10000-2723\times 1$

= $27230000-2723$

= $27227277$

Hence, $2723\times 9999$ = $27227277$.