Order of Operations

Rem: First name, last initial & math period (1,3, or 4)
Complete the following problems on paper then enter all of your work on the blog.
Due: 12/15/09

1.) 10 - 3 + 8 + 10 — 10 + 12 — 8

2.) 4 — 9 + 7 + 36 ÷ 12 + 3 — 10

3.) 5 — 5 + 3 — 11 + 9

4.) 10 + 4 — 1 + 3 – 2

5.) 10 x 3(4 – (9-8))

6.) 2 + 3(9 + 2) - 8

http://www.mathisfun.com/operation-order-pemdas.html

Ratio Practice

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Write the ratio in simplest form, then write in two other ways.
28 to 10
63 to 3

Find the Unit Rate (Rem: unit = 1)
24 muffins to $15

Tell if the ratios are equivalent (Rem: use common denominators or decimals)
9:6 = 28:14

Find the value of x (Rem: rewrite in fraction form, then solve for x)
5 to 6 = x to 30

Stem & Leaf

Make two stem and leaf plots for the following sets of numbers:

Set 1: 12, 8, 25, 14, 30, 21, 25, 36, 18, 14, 9

Set 2: 58, 61. 47, 58, 48, 41, 70, 66, 62, 59, 60, 55, 90

Record your answers as comments starting with your first name and last initial.

Mean, Median, Mode

Calculate the mean (average), median (middle), and mode (most) for the following set of numbers:

98, 75, 82, 80, 66, 73, 93, 30, 80, 100

Also, calculate the range of the data (greatest value - least value).

Record your answers as comments using complete sentences. Please start by stating your first name and last initial.