Question

An athletic stadium has a capacity of 1.5 × 10^4 fans. If 9 × 10^3 fans buy advance tickets to an event at the stadium, how many tickets will be available at the box office on the day of the event? Use Standard Notation

Answer 1

so simply substract......
1.5×10^4-9×10^3

=.6×10^4.......answer

Answer 2

1.5 x 10^4 = 15,000
9 x 10^3 = 9,000

15,000 - 9,000 = 6,000 <=== or 6 x 10^3