Hon Environmental Science
Sipe 2015-16
Name __________________________Per ________
Date _____________
Basic Math Skills and Word-Based Logic Problems
SGO #1 Pre-assessment
In Honors Environmental Science you will be required to do basic math calculations and be able to solve wordbased logic problems (aka story problems) for most of our units on labs and tests. Sometimes the calculations
will be easy enough to solve in your head, but you will be able to use a calculator. However, you are required
to SHOW ALL WORK (including units)in order to receive full credit. This worksheet is designed to assess the
range of math skills in the class.
No Calculators allowed
A. Write the following numbers in scientific notation: (2pts each/6pts total)
1. Forty eight thousand
2. 0.015
3. 3950
B. Convert the following to regular notation: (2pts each/4pts total)
4. 2.45 x 104 (2pts)
5. 9.1 x 10-2 (2pts)
C. Use scientific notation solve the following problems and make sure to put your final answer in proper
scientific notation (2pts each/6pts total)
6. (3.0 x 10-8)(6.0 x 102) =
7. (2.0 x 104) ÷ (1.0 x 1013)=
8. (2.0 x 102) + (3.0 x 103) =
Hon Environmental Science
Sipe 2015-16
Name __________________________Per ________
Date _____________
D. Perform the following conversions and make sure to put your final answer in proper scientific notation,
for a and b. (2-4pts each/10 pts total)
9. 8640 mm to cm (2 pts)
10. 33.2 kg/L to kg/mL (2 pts)
11. Traveling at 60 miles/hour, how many minutes will it take to drive 240 miles to Baltimore? (2pts)
12. A substance weighs 20 g. Every 5 minutes, the substance doubles. How long would it take for the
substance to reach a weight of 80 g? (4 pts)
E. Perform the following percentage calculations. (2-4pts each/14pts total)
13. Determine 20% of a $34.80 bill so that you can give a good tip. (2pts)
14. If 30% of a natural area is to be developed, leaving 1400 acres untouched, how many acres are
to be developed? (5pts)
15. Fifteen million is what percentage of the U.S. population of 300 million? (3pts)
16. Calculate the percent growth rate for a country with population 6 million, in a year in with
100,000 births and 70,000 deaths. (4pts)