# Finding Averages

In this lesson, students will have problems where they will find the average of a set of numbers.

First, you will copy the worksheet so that each student will have a copy.

Then, you will explain how to find averages.

For example, you you can write the following numbers on the board: 55, 90, 100, 70, and 55. Then have the students add the scores and find the average by dividing the total by the number of scores, which is 5. You would divide 370 by 5 = 74. The average is 74.

After that, you will pass out the worksheets so they can work on them independently.

Worksheet - Finding Averages

Directions - You will find the averages in each of the following problems.

1. Find the average of the following test scores: 100, 100, 70, 75, 75, 80, 80, 90, 90, 100.
2. Find the average of the following basketball scores: 90, 75, 60, 73, 87, 85.
3. James made 4 A's, 3 B's, and 2 C's on his tests. Find the average of his grades. A = 4, B = 3, C = 2.4. Mindy spent $50.00 the first week of the month on food, $30.00 the second week, $20.00 the third week, and $20.00 the fourth week. If she spent approximately same amount each month, what would the average amount be for the year?5. Jean watches 2 hours of television on Monday, 4 on Tuesday, 3 on Wednesday, 3 on Thursday, 5 on Friday, 8 on Saturday, and 8 on Sunday. What is the total amount she watches during the week? What would the average be for the month if she watches approximately the same amount each week?6. Bob made the following points on his quizzes: 80, 85, 100, 100, 65, 80, 80, 100, 90, and 90. Tom made the following points on his quizzes: 85, 90, 90, 90, 70, 65, 65, 100, 100, and 75. Looking at each of the scores, estimate who scored the highest average. Then, find the average of their scores. Did your estimate match the right answer? Who had the highest average, Bob or Tom?

You can grade the students on the total number correct out of the total possible.

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