MathV10 – Exam 2 – review(F2.2– F3.1)

Topic F2.2

1.    Which of the following is the least?

                                  

2.    Find the least common denominator of the fractions:

                                  

3.    Find:       

 

4.    Choose the expression below that is equal to:   

                                       6 + x          

 

5.    Find:       

 

6.    Find the value of x:   

 

Topic F2.3

7.    Write each of the following as a decimal number.

                  a.    fifteen and eight hundredths

                  b.    nine and thirty-six thousandths

8.    Arrange the following decimal numbers in order from greatest to least:

                           0.03          0.30          0.29           0.31           0.0003

 

9.    Round each of the following decimal numbers.

                    a.    12.3456 to the nearest thousandth

                    b.    .55555… to the nearest tenth

 

10.    Write each of the following decimal numbers as a fraction.

                          (Reduce each fraction to lowest terms.)

                     a.    .65

                     b.    .168

11.    Write each of the following fractions as a decimal number.

                      a.   

                      b.   

 

12.    Determine which statements are true.

                     a.   

                     b.   

                     c.    can be written as 0.67 rounded to the nearest hundredth.

                     d.   

 

Topic F2.4

13.    Do this addition:    0.7  +  1.38  +  2.046  +  0.002

 

14.    Caroline bought a bottle of perfume for $34.28. She gave the

cashier a fifty dollar bill. How much change did she receive?

 

15.    Do this addition and subtraction by combining like terms:

                2.3a  +  5.7b  +  0.9  +  4.8b  -  1.9a

 

16.    Do this multiplication.

                           7.3 • 0.28

 

17.    Find the value of x in this equation.

                 0.39x  =  1.793

 

18.    A candy bar costs $0.65. How many candy bars can Zack buy for

                           $18.85.

 

19.    Use order of operations to simplify this expression.

                 5.1  •  [2.3  +  (3.1  -  1.9)]    2  +  19.23

 

Topic F3.1

20.    In a choir consisting of soprano, altos, tenors, and basses, there

are 49 singers. Of this number, 15 are sopranos and 16 are

tenors.

   a.    What is the ratio of the number of sopranos to the number of

                tenors.

   b.    What is the ratio of the number of sopranos to the number of

                singers.

 

21.    Nancy drove 360 miles in 8 hours. Find the rate that she drove in

miles per hour.

 

22.    Solve this proportion for x:   

 

 

23.    After hiking 5.6 miles. Sharon found that she was 4/5 of the way

along the trail. Use the follow proportion to find x, the length

of the trail in miles.

                                          

 

24.    Two similar triangles have the following lengths for their

corresponding sides.:

             1st triangle                        2nd triangle

 

       medium side -- 56             medium side -- 84

        largest side -- 70                  largest side -- x

        shortest side -- 42             shortest side -- 63

Use this proportion to find x, the missing length:   

 

25.    Write a ratio to compare 47 cents to 3 dollars.