1985 AMC 8 Problem 3

Attempt Problem 3 of the 1985 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1985 AMC 8 solutions, or check the answer key.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

3.

What is the value of the following expression?
1075×104\dfrac{10^7}{5 \times 10^4}
0.0020.002
0.20.2
2020
200200
20002000
Answer: D
Concepts:exponent
Small hint:
107104=103\dfrac{10^7}{10^4} = 10^3
Big hint:
Then divide 103=100010^3 = 1000 by 55
Solution:
Since 107104=103=1000,\dfrac{10^7}{10^4} = 10^3 = 1000, the expression is 10005=200.\dfrac{1000}{5} = 200.
Thus, the correct answer is D .
LIVE by Po-Shen Loh
Programs

LIVE Classes

Self-Paced Classes

Stars

Scholarship

About Us

Who Is Po-Shen Loh?

Email Contact

Newsletter

Jobs

Become a Star

For a more Thought Full world.

© 2026 Expii, Inc.