Estimate the following quantities without using a calculator. Then find a more precise result, using a calculator if necessary. Discuss whether the approximation technique worked.

a. 400,000×200

b. 5.2 million×2.6 thousand

c. 4×10^9÷(1.8 x 10^6)

The approximate value of 400,000×200

is

(Use scientific notation. Use the multiplication symbol in the math palette as needed.)

Leave a Reply

Your email address will not be published.