Chapter 2 Practice Test             Mr. Hickam

 

 

Calculate the following.  No calculator allowed unless the problem says it is allowed. Answer should not contain a percent sign.

 

1.                  3.45 ´ 1000 = _______________

2.                 .456 ´ 106 =  _______________

3.                 78 ´ 1/1000 =  _______________

4.                 .9 ´ 103 =  _______________

5.                  10% of 80 =  _______________

6.                  3.2% of 200 = _______________

7.                  15% of 60 =  _______________

8.                 465 ´ .001 =  _______________

9.                 6,000,000 ´ 10-6 =  _______________

10.             .005 ´ 1000 =  _______________

11.             6.4% ´ 104 =  _______________

12.             10% of 45 = _______________

13.             10-2 ´ 105 =  _______________

14.             1.2 billion ´ 10-8 =  _______________

15.             163.5 million ´ 1/10,000 =  _______________

16.             2040 ´ 10 =  _______________

17.             1/5 ´ 1/100 =  _______________

18.              20% of 60 =  _______________

19.             15.6 ´ 1,000,000 =  _______________

20.              23 =  _______________

21.             7 ´ 10-2 =  _______________

22.              90 =  _______________

23.              110 =  _______________

 

In 24 - 40, Put the numbers in scientific notation.

24.              14,000,000 =  _______________

25.              234,500,000,000,000 =  _______________

26.              .00045 =  _______________

27.              .12 =  _______________

28.              234,000 =  _______________

29.              65.7 million =  _______________

30.              196 billion =  _______________

31.              .0123 =  _______________

32.              45.67 =  _______________

33.              .000000004 =  _______________

34.             567.4 ´ 1066 =  _______________

35.              19/20 =  _______________

36.              56,000,000 =  _______________

37.              “Two hundred sixty-two hundred-thousandths” =  _______________

38.             .004 ´ 10-34 =  _______________

39.              5.6 =  _______________

40.              One thousandth =  _______________

 

41.              As a decimal, what is 45%? _______________

42.              As a decimal, what is 3%? _______________

43.              As a decimal, what is 125%? _______________

44.              As a decimal, what is 6 ½ %? _______________

45.              As a decimal, what is 3/4 % ? _______________

46.              As a decimal, what is 5000%? _______________

47.              At a 40% off sale, how much will a $80 shirt cost? _______________

 

48.             I read 18% of a 450 page book.  How many pages did I read? (Calculator allowed) _______________

 

 

49.             In a marker tossing contest, Mr. Hickam caught 100% of the markers that he tossed, while Mr. Bachrach only caught 2% of the markers that he tossed.  If Mr. Bachrach tossed 250 markers, how many did he catch?   (Calculator allowed)

Poor Mr. Bachrach.

 

 _______________

 

50.              In my class of 78 students, 42% are boys.  How many are boys are there? _______________

 

51.              How much would you pay for a shirt that was originally $50, but is now 35% off? _______________

 

52.              How much would you pay for a $40 shirt if it was 5% off?  ____________

 

53.             On the last test, 5 made an A, 6 made a B, 10 made a C, and 4 made a D.  What percent made a B?  (Calculator allowed)          _______________

 

54.              Of my 80 students, 45% have green eyes, 35% have blue, 20% have brown.  How many kids have blue eyes?   _______________

 

55.              In the last election, Jimmy got 43.2% of the total vote.  If 5,400 people voted, how many voted for Jimmy?   _______________

 

56.              Tax in Chatham County is 6%.  What would be the final price for a $4 pair of socks?    _______________