Question

A company used about 7.4 × 105 sheets of paper in a month. Of the paper used during the

month, the accounting department used about 8.9 × 103 of the sheets. About how many
sheets of paper were used by other departments during the month?

Answer 1

The company used 7.4 x 10⁵ sheets of paper. That's 740,000 .

The accounting department used 8.9 x 10³ sheets. That's 8,900 .

Everybody else used (740,000 - 8,900) = 731,100. That's 7.311 x 10⁵ .

That was a lotta trees !