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Fall 2008 MAT 1012 Test: Mathematics Problem Solving - Prof. Nancy Molik, Exams of Elementary Mathematics

A mathematics test from a fall 2008 mat 1012 class. The test includes various mathematical problems that require addition, subtraction, multiplication, division, and unit rate conversions. Students are required to simplify all answers and show their work for the first part of the test, while they may use calculators and still show their work for the second part. Problems include adding and subtracting numbers, dividing decimals, multiplying fractions, and determining unit rates.

Typology: Exams

Pre 2010

Uploaded on 08/19/2009

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Test 3a MAT 1012 Fall 2008 Name ____________________________
Simplify all answers and show your work! Solutions having an answer only or where the work does not
match up with the answer will be marked wrong. This is not a test of your ability to guess. Calculators are
not allowed on this portion of the test. When you are finished, get part b of the test.
1) Add: 23.5 + 6.78 + 142 2) Divide:
8
.
8
62.55 3) Multiply: place(s) _____ 5.3
place(s) _____ 2.6
×
_____ place(s)
4) Write
8
5 as a decimal. 5) Subtract: $40 – $23.74
6) A recycling center is paying $0.75 for each pound of aluminum cans brought in to be recycled. How much
will the recycling center pay for a bag of aluminum cans weighing 23.75 pounds?
7) The average price of gasoline in the United States was about $2.66 per gallon of gasoline as of October
27. Two weeks later, the average price had dropped to $2.22. How much did the average price of gasoline
drop in those two weeks?
8) The government’s original bailout of AIG included $85 billion in September and $37.8 billion in October.
In November, the Federal Reserve changed its bailout terms to be a $60 billion loan, a $52.5 billion aid
package, and $40 billion for AIG stock.
a) How much was the government’s original b) How much more were the bailout terms in November
bailout of AIG (for Sept. and Oct.)? over the original bailout terms?
9) Ms. Molik drinks two canned sodas a day from the soda machine. Each can costs $0.60. If there are ten
weeks in a quarter with five days in each work-week, how much money does Ms. Molik spend each quarter
on sodas from the soda machine?
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Test 3a MAT 1012 Fall 2008 Name ____________________________

Simplify all answers and show your work! Solutions having an answer only or where the work does not match up with the answer will be marked wrong. This is not a test of your ability to guess. Calculators are not allowed on this portion of the test. When you are finished, get part b of the test.

  1. Add: 23.5 + 6.78 + 142 2) Divide:
  1. 8
  1. Multiply: 5.3 _____place(s)

2.6 _____place(s) ×

_____ place(s)

  1. Write 8

as a decimal. 5) Subtract: $40 – $23.

  1. A recycling center is paying $0.75 for each pound of aluminum cans brought in to be recycled. How much will the recycling center pay for a bag of aluminum cans weighing 23.75 pounds?

  2. The average price of gasoline in the United States was about $2.66 per gallon of gasoline as of October

  1. Two weeks later, the average price had dropped to $2.22. How much did the average price of gasoline drop in those two weeks?
  1. The government’s original bailout of AIG included $85 billion in September and $37.8 billion in October. In November, the Federal Reserve changed its bailout terms to be a $60 billion loan, a $52.5 billion aid package, and $40 billion for AIG stock.

a) How much was the government’s original b) How much more were the bailout terms in November bailout of AIG (for Sept. and Oct.)? over the original bailout terms?

  1. Ms. Molik drinks two canned sodas a day from the soda machine. Each can costs $0.60. If there are ten weeks in a quarter with five days in each work-week, how much money does Ms. Molik spend each quarter on sodas from the soda machine?

Test 3b MAT 1012 Fall 2008 Name ____________________________

Simplify all answers. You may use your calculator on this portion of the test, but you still need to show how you set up your problems!

  1. Write each ratio as a fraction in lowest terms: 2) Write the following as unit rates:

a) 24 to 4 b) $1.50 to $4.25 c) 8

3 to 7

2 a) $8.75 for 5 pounds b) 326.4 miles on 12 gal.

Solve for x:

x

x 5

x

  1. Determine if the following proportion is 7) Write the following in order from smallest to largest: true or false. Justify your answer. 0.524, 0.542, 0.54, 0.528, 0.

8) Simplify: 4.2^2 + 18.4 ÷ 7.3 • 2.

  1. If a 15.5 oz. can of beans costs $1.25 and a 29 oz. can of the same beans costs $2.09, which is the better buy? Justify your answer.