Question

Find (7×10^6)-(4×10^4)

Answer 1

=6960000 or 6.96 x 10^6

Explanation:

1. remove unnecessary parentheses

7 x 10^6 - 4 x 10^4

2. factor the expression

(7 x 10^2 - 4) x 10^4

3. evaluate the power

(7 x 100 - 4) x 10000

4. multiply the numbers

(700 - 4) x 10000

5. subtract the numbers

696 x 10000

6. Multiply the numbers

=6960000

or

6.96 x 10^6