Name: ____________________
SPH3U – Math Skills Quiz
1. Round each number off to two significant digits:
a) 1.0000437 m
b) 7.152223 s
c) 4.55 g
2. Solve using the rules of significant digits:
a) 8.3 km – 19.8 km + 32.79 km
b) (82.2 m/s + 19 m/s)
× 6.5 s
3. Given a = bc + d, isolate for b.
4. Complete the calculations and express your answer in scientific notation.
a)
(3.5 x 104)3 x 9.00 x 1012
b) (35.0 m – 19.45 m) ÷ 8 s
5. Complete the following SI conversions.
a) 8745 nm to Mm
b) 0.0893 kg to µg
6. A train is traveling at a speed of 85 km/h. Convert the value to m/s. Be sure to show all of
your work.