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
Fractions / Decimals / Percent / Scientific Notations33.%
0.21
6.5 x
15.7%
0.04
2.01%
0.625
8 x
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
Write as a fraction, if possible, and as a decimal1) / 2) / 3) / 4)
Write using scientific notation
5) 0.0000451 / 6) 0.0089 / 7) 158 / 8) 30,600
Write in standard notation
9) 7.25× / 10) 8.1× / 11) 4.083× / 12) 6.98×