Name ___________________ ______________ Date ____________ Period ______________
PRACTICE SECTION 1.3
Work out the practice problems on this paper.
1. Round 578.683 m, 47.3333 kg, and 789.5 cm to four significant figures.
2. Round 3,155.24 m, 8.77773 cm, and 93.75557 kg to one less significant figure than they each
have currently.
3. Use the equation to find the area of a rectangle that is 48.5 cm long and 3.77 cm wide. Round
your answer to the correct number of significant figures. Round to the least number of sig
figs as the measurement with the least.
4. Multiply 4.135 m  4.688888887 m  8.7 m. Round your answer to the correct number of
significant figures. Round to the least number of sig figs as the measurement with the least.
5. A signal is transmitted between four microwave signal towers. The distances between the
towers is 2.5 km, 25.15 km, and 0.555 km. What is the total distance traveled by the signal?
Round your answer to the lease number of decimal points in any of the measurements.