Algebra Puzzle – Critical Thinking 13
Can you solve this critical thinking challenge? This is a fun math puzzle for practicing children's math skills. It's also very useful for adults to challenge their brains!
Challenge:
3*4 = 12
2*5 = 30
4*7 = 84
5*8 = ??
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is 120.
Similar to critical thinking number 4, don’t try to find a relationship between numbers on both sides. Instead, consider the digits of each number and try to find a relationship between the two digits of the number in the left side. Try to find an operation between the digits of the number in the left side that can create the digits of the number of the ride side.
3 * 4 = 12
2 * 5 = 30
4 * 7 = 84
5 * 8 = ??
For the first equation, the product or 3 and 4 is 12, which is the answer.
For the second equation, the product of 2 and 5 is 10. But, the answer is 30. So, the symbol * is not a multiplication. 10 times 3 is 30.
Let’s find the pattern. We know that 3 * 4 = 12 and
2 * 5 = 30.
12 times what number is 12? It’s 1. So, 3 × 4 × 1 = 12 and 2 × 5 × 3 = 30
In the first equation, we should find number 1 from 3 and 4. In the second equation, we need to find 3 from 2 and 5. In fact, the difference of 3 and 4 is 1 and the difference of 2 and 5 is 3!
For the third equation, the product of 4 and 7 is 28. The difference of 4 and 7 is 3. Then:
4 × 7 × 3 = 84
Since the difference of 5 and 8 is 3, therefore, the answer to the last equation is:
5 * 8 = 5 × 8 × 3 = 120The Absolute Best Books to Ace Algebra
Original price was: $29.99.$19.99Current price is: $19.99.Original price was: $29.99.$14.99Current price is: $14.99.Original price was: $29.99.$14.99Current price is: $14.99.Satisfied 1 StudentsOriginal price was: $24.99.$14.99Current price is: $14.99.Satisfied 92 StudentsOriginal price was: $24.99.$15.99Current price is: $15.99.Satisfied 125 Students
Related to This Article
More math articles
- DAT Math Formulas
- ASTB Math Practice Test Questions
- The Importance Of Mathematics For Students Pursuing STEM
- Full-Length GED Math Practice Test
- FREE 8th Grade Georgia Milestones Assessment System Math Practice Test
- Time Travel Adventure: How to Perform Indirect Measurement in Similar Figures
- The Ultimate 6th Grade WY-TOPP Math Course (+FREE Worksheets)
- How to Find the Number of Solutions to a System of Equations by Graphing
- Top 10 3rd Grade IAR Math Practice Questions
- The Ultimate 7th Grade ISASP Math Course (+FREE Worksheets)
What people say about "Algebra Puzzle – Critical Thinking 13 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.