Mathematical Riddles for Teens to Complete the Series

Mathematical Riddles for Teens to Complete the Series
Recently I was playing a game in Lumsoity called Fuse Clues. In this game, one has to complete many patterns. The way they have designed this game is that there are many houses in an apartment and in some of these houses electricity is not there which one needs to restore by completing the mathematical series. The moment one completes the series correctly, the connection gets completed in the game turning on the bulb and lights in the house.
These mathematical series are very much fun to solve and it helps to improve logical reasoning by enhancing the ability to recognize patterns, draw conclusions and thus make correct decisions. I thought of creating a post in which one has to complete the mathematical series. One needs to have knowledge of only basic mathematics operations to complete these series. Let's see many many of these series one can complete without looking that answers to these riddles. The difficulty of these math brain riddles is from medium to hard. So these can be used by high school students for testing their mathematical skills :). In each of these mathematical series, one has to tell what are the next numbers on the series with logical conclusions.
Answers to these series are given at the end of this post. Please do post your answers in the comment section of this post.

Q1. 2, 20, 200 ,2000, 20,000, ............, ...................

Q2. 25, 49, 169, ...................., ......................, ............

Q3. 5, 13, 25, ................, ............., ...............

Q4. 53, 61, 68, 82, 92,..........., ....., ...........

Q5. 26, 682, 2166, 6152, ............., ............, ............

Q6. 10, 20, 74, 100, ....... , ............

Q7. 2, 6, 12, 20, ....., .........., ............

Q8. 7, 16, 34, 70, ......, ................., ...............

Q9. 47, 51, 56, 60, .... ... ....., ....... , ..............

Q10. 27, 64, 125, 216, ......... , .......... , .........

Q11. 12, 14, 116, 1136 ........, ...........,..............

Q12. 22, 44, 88, ............., ...............,............

Q13. 101, 1001, 10001, .............., ...................., ...............

Q14. 22, 24, 26, 28, .........,............., ...............

Q15. 34, 43, 54, 45, 36,............ , 67, .............

These Fun Brain Teasers are part of Fun Maths Brain Teasers. To solve these Maths Riddle one requires good Mathematical knowledge as well as good analytics and logical reasoning. Do checkout below mentioned Fun Brain Teasers which will challenge your brain.

List of Fun Brain Teasers

The answer to Mathematical Series Riddles


A1. 2,00,000, 20,00,000, 2,00,00,000





A2. 256, 169, 256
The required number is the square of the sum of the digits of the previous number.



A3. 41 , 61,85
Explanation: series is as follow:
1²+2² , 2²+ 3² , 3² + 4², 4²+ 5², 5²+ 6², 6²+7²



A4. 103,107,115
Explanation of math series is as follow:
The required number is the last number + sum of the digits of the last number
e.g 53+8=61, 61+7=68, 68+14=82, 82 +10=92, 92+11=103, 103+4=107



A5. 2146, 6132, 2126
Explanation of math series brain teaser is as follow:
The first and last digits of the required number are replacements of the first and last digits of the previous number and central numbers are the sum of the digits of the last number.



A6. 202, 244
Explanation of this math series brain teaser is as follow:
Required number = 1²+3² , 2²+ 4² , 5² + 7², 6²+ 8², 9²+ 11², 10²+12²



A7. 30, 42, 56
Explanation of math series brain teaser is as follow:
5²+5. 6²+6, 7²+7



A8. 142, 286, 574
Explanation of this math series riddle is as follow:
The required number is the previous number x 2 +2



A9. 64, 68, 72...
Explanation of this math series riddle is as follow:
Required number = previous number + 4.



A10. 343, 512, 729
An explanation of this riddle is as follow:
Required number = cube of 7, 8, 9



A11. 11936, 1181936, 1164181936
An explanation of this math brain teaser is as follow:
Required number = each digit of next number is square of each digit of the previous number
Example: 14=1²2², 116=1² 4², 1136=1²1²6², and so on.




A12. 176, 352, 704
An explanation of this math series IQ question is as follow:
Required number = previous number x 2



A13. 100001, 1000001, 10000001
An explanation of this mathematical series is as follow:
Required number = add 900.9000, 90000, 900000, and so on in the previous number



A14. 30, 32, 34
The explanation of this mathematical series riddle is as follows: Required number =previous number +2.



A15. 63, 76.
The explanation of this math logic series is as follows: Required number = required number is the replacement of the digits of the previous number.


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