Math in the Workplace - Numbers & Operations
MERIDIAN SCHOOL DISTRICT
Elementary Education
Second Grade Teacher
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Job Description: Give a solid educational foundation
and instill a love of learning, teach math, science, reading, writing, spelling,
geography, language, art and history plus personal safety, nutrition, drug
awareness, and morals. |
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Problem:
To compute students' grades for report cards, grades are taken at least twice a week for the nine-week grading period.
If the following are a typical student's grades, what is his/her overall average?
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
| 85% |
90% |
90% |
100% |
75% |
68% |
93% |
96% |
86% |
| 100% |
100% |
85% |
80% |
95% |
93% |
100% |
100% |
80% |
 MERIDIAN SCHOOL DISTRICT
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Solution:
Computing grades:
1. Add all grades recorded:
85 + 90 + 90 + 100 + 75 + 68 + 93 + 96 + 86 + 100 + 100 + 85 + 80 + 95 + 93 + 100 + 100 + 80 = 1,616
2. Divide this sum by the number of recorded grades:
1,616 
18 = 89.7%
3. Round off to nearest whole number: