Question

Mr Anderson wrote `(7times9)times10^3` on the board. What is the value of that expression?

Answer 1

`63 xx10^3 = 6.3 xx 10^4 = 63,000`

Explanation:

`(7xx9) xx10^3`

=`63 xx10^3`

This is in exponential form. In scientific notation it would be

`6.3 xx10^4`

and in standard or decimal form it is `63,000`