A company has 178 offices, and each office has 79 employees. They are all invited to a party. Estimate the number of people who will attend the party if the number of employees is rounded off to the nearest tens and number of offices to the nearest hundreds.
Number of offices = 178
Number of offices estimated to the nearest 100 gives 200 as 178 is close to 200 than to 100.
Number of employees = 79
Number of employees estimated to the nearest tens gives 80 as 79 is close to 80 than to 70.
Number of people who will attend the party (estimated)
= 200 × 80 = 16000