Averages and Rounding

1.

Round 907.457 to the nearest tens place.

  • A. 908.0
  • B. 910
  • C. 907.5
  • D. 900
  • E. 907.46

2.

At a certain high school, the respective weights for the following subjects are:
Mathematics 3, English 3, History 2, Science 2 and Art 1.
What is a student's average whose marks were the following: Geometry 89, American Literature 92, American History 94, Biology 81, and Sculpture 85?

  • A. 85.7
  • B. 87.8
  • C. 88.9
  • D. 89.4
  • E. 90.2

3.

Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursday, she spent $5.43 total. On Tuesday and Wednesday, she spent $3.54 on each day. On Friday, she spent $7.89 on lunch. What was her average daily cost?

  • A. $3.19
  • B. $3.75
  • C. $3.90
  • D. $4.08
  • E. $4.23

4.

What is 1230.932567 rounded to the nearest hundredths place?

  • A. 1200
  • B. 1230.9326
  • C. 1230.93
  • D. 1230
  • E. 1230.933

5.

Subtract the following numbers rounded to the nearest tenths place.
134.679
-45.548
-67.8807

  • A. 21.3
  • B. 21.25
  • C. -58.97
  • D. -59.0
  • E. 1

6.

What is the absolute value of -9?

  • A. -9
  • B. 9
  • C. 0
  • D. -1
  • E. 1

7.

What is the median of the following list of numbers? 4, 5, 7, 9, 10, 12

  • A. 6
  • B. 7.5
  • C. 7.8
  • D. 8
  • E. 9

8.

What is the mathematical average of the number of weeks in a year, seasons in a year, and the number of days in January?

  • A. 36
  • B. 33
  • C. 32
  • D. 31
  • E. 29

9.

In a college, some courses contribute more towards an overall GPA than other courses. For example, a science class is worth 4 points; mathematics is worth 3 points; history is worth 2 points; and English is worth 3 points. The values of the grade letters are as follows, A= 4, B=3, C=2, D=1, F=0. What is the GPA of a student who made a C in Trigonometry, a B in American History, an A in Botany, and a B in Microbiology?

  • A. 2.59
  • B. 2.86
  • C. 3.08
  • D. 3.33
  • E. 3.67

10.

Over the course of a week, Fred spent $28.49 on lunch. What was the average cost per day?

  • A. $4.07
  • B. $3.57
  • C. $6.51
  • D. $2.93
  • E. $5.41

11.

A roast was cooked at 325° F in the oven for 4 hours. The internal temperature rose from 32° F to 145° F. What was the average rise in temperature per hour?

  • A. 20.2° F/hr
  • B. 28.25° F/hr
  • C. 32.03° F/hr
  • D. 37° F/hr
  • E. 37.29° F/hr

12.

In the number 743.25 which digit represents the tenths space?

  • A. 2
  • B. 3
  • C. 4
  • D. 5
  • E. 6