# Practice Questions (Exponents)
1. 10^{4} is not equal to which of the following?
A. 100,000
B. 1.0 x 10^{5}
C. 10 x 10 x 10 x 10
D. 10^{2} x 10^{2}
E. 10,000
2. Multiply 10^{4 }by 10^{2}
A. 10^{8}
B. 10^{2}
C. 10^{6}
D. 10^{-2}
E. 10^{3}
3. Divide x^{5 }by x^{2}
A. x^{7}
B. x^{4}
C. x^{10}
D. x^{3}
E. x^{2.5}
4. Find 8.23 x 10^{9}
A. 0.00000000823
B. 0.000000823
C. 8.23
D. 8230000000
E. 823000000000
5. 83,000 equals:
A. 83.0 x 10^{4}
B. 8.3 x 10^{4}
C. 8.3 x 10^{3}
D. 83.0 x 10^{5}
E. 83.0 x 10^{2}
6. .00875 equals:
A. 8.75 x 10^{-2}
B. 8.75 x 10^{-3}
C. 8.75 x 10^{-4}
D. 87.5 x 10^{-3}
E. 875 x 10^{-4}
Answer Key
1. A
2. C
3. D
4. D
5. B
6. B
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