Math 254A
Essential Mathematics—First Half
Name_______________________________
Date________________________________
Practice Problem Set 4
The exam is closed book and closed notes. NO CALCULATORS. Please clearly show any work necessary to
get partial credit. Be sure to show your answer clearly. There will be approximately 26 problems on the
actual exam.
1.
Give the place value of the digit 5 in the following numbers:
a. 237.1504
b. 504.8096
c. 0.0153
d. 1500.962
2.
Write the number in words.
3.
Write the number in words. 0.028
4.
Write the number in standard form. two hundred five ten-thousandths
5.
Write the number in standard form. eleven and sixteen thousandths
6.
Write as a proper fraction or mixed number. Write your answer in simplest form. 0.64
7.
Write as a proper fraction or mixed number. Write your answer in simplest form. 5.002
8.
Write the following fraction in its decimal form:
41
1000
9.
Write the following fraction in its decimal form:
28
10
10.
Round 45.2791 as indicated:
a. tenth
b. hundredth
c. thousandth
11.
Round $23.567 as indicated:
a. nearest cent
b. nearest dollar
12.
Add.
854.1602  17.234  12
13.
Subtract.
7568.2004  2546.778
14.
Subtract.
258.435  34.0728
3.062
15.
Multiply.
13.52  2.04
16.
Multiply.
25.21  1000
17.
Multiply.
25.21  0.01
18.
Divide.
78  1.5
19.
Divide.
0.54  12
20.
Divide 0.852 by 2.3 and round your answer to the nearest hundredth.
21.
Simplify the expression.
22.
Simplify the expression.
23.
Write the number as a decimal.
14
25
24.
Write the number as a decimal.
31
40
25.
Write the number as a decimal.
7
11
26.
Write the number as a decimal.
3
27.
Insert  ,  , or  to make a true statement.
0.230
0.23
28.
Insert  ,  , or  to make a true statement.
0.502
0.520
29.
Insert  ,  , or  to make a true statement. Show appropriate work that supports your answer.
30.
Write the following numbers in order from smallest to largest.
3.06 , 3.16 , 3.061 , 3.106
31.
Write the following numbers in order from smallest to largest.
2
, 0.49, 0.42
5
32.
Ann bought a book for $35.28. If she paid with two $20 bills, what was her change?
33.
The face of the iPod Touch measures 4.3 inches by 2.4 inches.
a. Find the perimeter of this rectangular face.
b. Find the area of this rectangular face
Use appropriate units in your answers.
3.2 ÷ (0.4)(2) + 3.2 ÷ (0.4 · 2)
0.01
6  5.2  10
2
 2.5  6  0.1
5
8
89
7
12.713
34.
The average rainfall in Omaha, Nebraska is 30.22 inches. The average rainfall in New Orleans,
Louisiana is 61.88 inches. On average, how much more rain does New Orleans receive annually than
Omaha?
35.
One 3.5 ounce serving of lobster meat contains 0.1 grams of saturated fat. How many grams of saturated
fat do 3 servings of lobster meat contain?
36.
A page of a book contains about 1.5 kilobytes of information. If a computer disk can hold 740
kilobytes of information, how many pages of a book can be stored on one computer disk? Round your
answer to the nearest tenth of a page.
37.
If a dozen (12) doughnuts cost $3.55, how much would it cost for one doughnut? Round your answer
to the nearest cent.
38.
Simplify the expression. Write the answer as a mixed number with the fraction part in simplest form.
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