Number Properties Puzzle – Challenge 21
Math challenges are perfect learning activities to help kids learn and have fun too. Let’s see who can solve this one! For additional educational resources, . For additional educational resources
Challenge:
If \(y = 7 × 10^{83}+3\), what is the remainder when y is divided by 9?
A- 0
B- 1
C- 2
D- 3
E- 4
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is B.
Divisibility rules for a divisor of 9:
A number is divisible by 9 if the sum of the digits is divisible by 9. For example 126 is divisible by 9, since, 1 + 2 + 6 = 9 is divisible by 9.
\(7 × 10^{83}+3 = 7, 000,…, 000 + 3 = 7,000 ,…,003\)
The sum of the digits is 10.
The Absolute Best Books to Ace Algebra
Related to This Article
More math articles
- How to Determine Indeterminate Form and Vague Limits
- How to Convert Between Polar and Rectangular Coordinates
- 5th Grade ACT Aspire Math Practice Test Questions
- Check Registers: Learn How to Develop the Ability to Organize Transactions
- Understanding Secant Angles: A Guide to Their Types
- How to Fill in the Gaps: Finding Missing Angles of Quadrilaterals
- How to Determine Limits Using the Squeeze Theorem?
- Take GED Test Online for Free
- How to Find Missing Angles of Triangles
- How to Prepare for the ISEE Upper-Level Math Test?
What people say about "Number Properties Puzzle – Challenge 21 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.