Can you find the missing number in this math test? Take the challenge and test your IQ! If you’re looking for a fun and challenging way to test your math skills, puzzles are the perfect activity. In this digital challenge, **you have to find the missing digit in place of the question mark. See if you can solve it in 30 seconds!**

## IQ test: what is the missing number?

IQ tests based on numerical challenges are a great way to exercise your mind and your mental arithmetic skills. Puzzles like this can be fun and tricky to solve, but remember to take your time.

Before you start counting on your fingers, carefully observe the pattern of the numbers. If you can identify the pattern, it will help you find the missing digit faster. Good luck ! The solution is given below.

## The solution to this mathematical challenge

THE **missing digit in this number puzzle is 8**. If you did not find the solution, you can try to understand the calculation logic before looking at the solution below. This is also how you can teach your brain to more quickly identify the overall logic of a problem. You will see that by training in this way, you will be able to solve increasingly complex problems.

**We can solve this mathematical riddle by dividing it into two parts. Let’s start with the first part.**

- 2 + 6 + 9 = 17
- 6 + 3 + 8 = 17

**Let’s solve the second part of this problem in the same way.**

In conclusion, we have found that the total sum of all left side and right side equations must be equal to 17. So we can calculate the value of the missing digit of this IQ test.

- 5+? + 4 = 17
- ? + 9 = 17
- ? = 17 – 9 = 8

**Did you find the right result in less than 30 seconds?**