Rational Numbersquiz Review

Rational NumbersQuiz Review

1)There are 14 blue marbles out of 20 marbles. What percent of the marbles are blue?1. ______

2)Write the percent as a fraction in simplest form.

240%2. ______

3)One share of Starbucks Stock fell 0.03 points yesterday. Write 0.03 as a percent.3. ______

4)Write the decimal as a fraction or mixed number in simplest form. 4a. ______

a) 7.25b) 5.6

4b. ______

5)Write the number as a percent.

a) 2 b) 2.5a. ______

5b. ______

6)Overnight it was so foggy that the measurable precipitation was 0.024 inches.

Write 0.024 as a fraction in simplest form.6. ______

7)What is 37.8% written as a decimal?7. ______

8)As an exponent decreases the value of the expression

a) stays the sameb) decreasesc) increases8. ______

9)Evaluate 9. ______

10)What is written as 10a. ______

a) fraction ?b) decimal ?

10b.______

11)The students at Stone Hill MS sent about text messages last month.

What is this number written in standard form?11. ______

12)Write 0.00000000473 using scientific notation. 12. ______

13)Order from greatest to least: 1.97, 195%, 1.93 × , 19 .

13. ______

14)The high temperature last year was 97 degrees Fahrenheit. The low temperature

was –6 degrees Fahrenheit. Use an absolute value expression to find the range

of the temperatures?14. ______

15)Evaluate |9| – |–4|15. ______

16)Solve 6 + (–8)16. ______

17)Ryan got an 88% on his math quiz. The quiz had 25 questions.

How many questions did Ryan answer correctly?17. ______

18)Evaluate . (Answer must be in fraction form.)18. ______

Complete the chart below by converting fractions to decimals to percents. Express fractions in simplest form

19)Compare the following:

a) 614,000,000 ___ 6.14 × b) ___ 160%c) 45 ___ 45%

Name:______Homework Quiz Review

Show every step: convert each number to a decimal; rewrite them under each other, lining up the decimals; rewrite for the final answer in their original form.

Order the following from least to greatest.

a) 0.0145 × , , 1.456, 10.5%, b) 15.86, 1.5 × , , 159%

Order the following from greatest to least:

a) 47.5%, 0.0348 × , , 4.456b) 5.7× , 7.39 × , 1.5 × , 0.01