Number Properties Puzzle – Challenge 18
This is a great math challenge that hones students' logic and creative thinking skills the fun way.
Challenge:
\(4^{20}+4^{20}+4^{20}+4^{20} =\) ?
A- \(4^{120}\)
B- \(16^{30}\)
C- \(4^{30}\)
D- \(2^{40}\)
E- \(2^{42}\)
The Absolute Best Book to Challenge Your Smart Student!

The correct answer is E.
Factorize \(4^{20}\):
\(4^{20}+4^{20}+4^{20}+4^{20} = 4^{20 } (1 + 1 + 1 + 1) = 4^{20 } (4) = 4^{21}\)
\(4^{21} = (2^2)^{21} = 2^{42}\)
The Absolute Best Books to Ace Algebra
Related to This Article
More math articles
- Geometry Puzzle – Challenge 65
- How to Graph Rational Functions?
- 3rd Grade ACT Aspire Math FREE Sample Practice Questions
- 8th Grade PARCC Math Practice Test Questions
- SAT And ACT Tests Hacks and Tips
- How to Find The Derivative of a Trigonometric Function
- 3rd Grade MAP Math FREE Sample Practice Questions
- The Best PERT Math Worksheets: FREE & Printable
- 10 Most Common 3rd Grade IAR Math Questions
- Unlocking the Secrets of Curves: Higher Order Derivatives in Graph Analysis

















What people say about "Number Properties Puzzle – Challenge 18 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.