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8th Grade Math Review - 2nd Six Weeks
Test Description: 2nd Six Weeks Test
Instructions: Answer all questions to get your test result.
1) A disk can hold 64,000,000 bytes of information. Express this number in scientific notation.
A
6.4 x 10^7
B
64.0 x 10 ^6
C
640 x 10 ^6
D
64 x 10 ^7
2) A square tile has an area of 144 square centimeters. Which is the best estimate of the length of one side?
A
10.0 centimeters
B
12.5 centimeters
C
12 centimeters
D
10.2 centimeters
3) The number 172 lies between which two perfect squares
A
13^2 and 14^2
B
12^2 and 13^2
C
14^2 and 15^2
D
18^2 and 19^2
4) The radius of an atom is one nanometer, which is approximately 3.937 x 10^-8 of an inch. What is the length expressed in standard notation?
A
0.0000003937
B
0.0000000003937
C
0.0000000003937
D
0.00000003937
5) The distance is 0.00000782 miles. How is that number of miles expressed in scientific notation?
A
78.2 x 10^7
B
7.82 x 10 ^-6
C
78.2 x 10^-7
D
7.82 x 10^6
6) Which set of numbers is in order from least to greatest
A
-1 1/5, -2/3, -3/5, -0.4
B
-1 1/5, -2/3, -0.4, -3/5
C
-0.4, -3/5, -2/3, -1 1/5
D
-0.4, -2/3, -3/5, -1 1/5
7) Write 998,000 in scientific notation.
A
99.8 x 10 ^5
B
9.98 x 10 ^5
C
9.98 x 10 ^-5
D
9.998 x 10 ^5
8) Which of the following expressions has a value of 12?
A
The square root of 193
B
The square root of 173
C
The square root of 144
D
The square root of 169
9) Which choice is more than 10 but less than 11
A
square root of 144
B
square root of 100
C
square root of 110
D
square root of 169
10) Find the square root of 64/81
A
10/11
B
8/9
C
4/3
D
7/8
*select an answer for all questions
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