1) The document outlines assignments and lessons for math class. It provides instructions for set 55 which is due on Monday, and a test on Tuesday. It also reminds students to check set 54 with a partner. 2) The lesson explains how to find the average of a set of numbers by adding them up and dividing by the total numbers. It also provides steps for working backwards to find a missing number when given the average and other numbers in the set. 3) Examples A through F are provided to illustrate the concepts from lesson 55.

1. Assignment:
1-->Set 55 (odds) - Due Monday (2/6)
2-->Test #8 - Tuesday (2/7)
Check Set 54 with
your partner!
1

2. Lesson 55:
*FYI...To find the average of a set of numbers-->
add them up and divide by the number of numbers!
***If you are given what the average is and have to find one of the
missing numbers in the set of data...you have to work backwards...
--ADD the numbers you HAVE been given...
--MULTIPLY the average by how many numbers in the set of data...
--SUBTRACT the sum from the product!
2

3. Lesson 55 Examples:
pg. 389
A)
B)
3

4. C)
D)
4

5. E)
F)
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