Answer
$29,200$
Work Step by Step
$730\times 40=(73\cdot 19)\times (4\times 10)=(7\times 4)\times (10\times 10)$
FIRST MULTIPLY $73$ by $4$, and then attach two zero to the right
(one zero of $730$ and one zero of $40$).
$73 \times 4 = 292$
Now, $29200$ (attach one zero of 730 and one zero of 40 total two zeros to the right)
Answer: $29,200$
