Number Properties Puzzle – Challenge 16

Enjoy exercising your brain? Looking for great math puzzles? If so, then you are in the right place.

Number Properties Puzzle – Challenge 16

Challenge:

What digit appears in the units place in the number obtained when \(2^{136}\) is multiplied out?

A- 0

B- 2

C- 4

D- 6

E- 8

The Absolute Best Book to challenge your Smart Student!

The correct answer is D.

Try to find the pattern:
\(2^1 = 2, 2^2 = 4, 2^3 = 8, 2^4 = 16, 2^5 = 32, 2^6 = 64\),
The pattern repeats every 4 numbers. Therefore, when \(2^{136}\) is multiplied out, the unit digit is 6. Why?

Related to "Number Properties Puzzle – Challenge 16"

5 Essential Strategies in Teaching Math5 Essential Strategies in Teaching Math
Best Middle School Math SuppliesBest Middle School Math Supplies
10 Must-Have Elementary Classroom Math Supplies10 Must-Have Elementary Classroom Math Supplies
The Best School Supplies for Learning MathThe Best School Supplies for Learning Math
10 Must-Have Math Teacher Supplies10 Must-Have Math Teacher Supplies
Other Topics Puzzle – Challenge 100Other Topics Puzzle – Challenge 100
Other Topics Puzzle – Challenge 99Other Topics Puzzle – Challenge 99
Other Topics Puzzle – Challenge 98Other Topics Puzzle – Challenge 98
Other Topics Puzzle – Challenge 97Other Topics Puzzle – Challenge 97
Other Topics Puzzle – Challenge 96Other Topics Puzzle – Challenge 96

What people say about "Number Properties Puzzle - Challenge 16"?

No one replied yet.

Leave a Reply