# Number System Formative Assessment 2 - 4th Hour

10 Questions | Total Attempts: 174  Settings  This formative assessment checks your understanding of the real number system, fraction/decimal conversions, ratios, exponents, and scientific notation.

• 1.
_____ .6
• A.

<

• B.

>

• C.

=

• 2.
____
• A.

• B.

>

• C.

=

• D.

• 3.
In a group of 20 students, 6 are sixth graders, 2 are seventh graders, and 12 are eighth graders.  Write the ratio of eighth graders to the total number of students in simplest terms.
• 4.
A horse runs 50 meters per 8 seconds.  Express the horse's speed as a unit rate.
• A.

6

• B.

6.25

• C.

6 meters

• D.

6.25 meters

• E.

6 meters per second

• F.

6.25 meters per second

• 5.
• 6.
• 7.
• 8.
Write 5100300000 in scientific notation.
• A.
• B.
• C.
• D.
• 9.
• 10.
Where should parentheses be placed to make this statement true? 7 + 3 x 5 - 1 = 19
• A.

(7 + 3) x 5 - 1 = 19

• B.

7 + (3 x 5) - 1 = 19

• C.

7 + 3 x (5 - 1) = 19

• D.

(7 + 3) x (5 - 1) = 19

• E.

The equation does not need parentheses to be true.

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