Write three thousand four hundred fifty-seven in figure and represent it on an abacus.

Write the following number in figure and represent it on an abacus.

Seven thousand eight hundred twenty-six.

Write four thousand thirty-eight in figure and represent it on an abacus.

Write nine thousand seven hundred eighteen in figure and represent it on an abacus.

Write the expanded notation of the number.

$7789$

Write the expanded notation of the number.

$3072$

Write the expanded notation of the number.

$8318$

Write the expanded notation of the number.

$9000$ 

Write the number $8000+900+20+5$ in compact form.