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20 Grade-School Math Questions So Hard You'll Wonder How You Graduated

Author: BestLife

Greenwald, Morgan. “20 Tricky But Fun Grade-School Math Questions - Hard Math Problems.” Best Life, 20 Aug. 2019,


1. Question: What is the number of the parking space covered by the car?

Car Space Brain Teaser {Brain Games}

2. Question: Replace the question mark in the above problem with the appropriate number.

Grade School Math Problem {Tricky Math Questions}

This problem shouldn’t be too difficult to solve if you play a lot of sudoku.

3. Question: Find the equivalent number.

Equivalent Number Math Problem {Tricky Math Questions}

This problem comes straight from a standardized test given in New York in 2014.

4. Question: How many small dogs are signed up to compete in the dog show?

Dog Math Problem {Tricky Math Questions}
Image via Imgur/zakiamon

This question comes directly from a second grader’s math homework. Yikes.

5. Question: Find the area of the red triangle.

Parallelogram Math Problem {Tricky Math Questions}
Image via YouTube

This question was used in China to identify gifted 5th graders. Supposedly, some of the smart students were able to solve this in less than one minute.

6. Question: How tall is the table?

Table Cat Turtle Math Problem {Tricky Math Questions}
Image via YouTube

YouTuber MindYourDecisions adapted this mind-boggling math question from a similar one found on an elementary school student’s homework in China.

7. Question: If the cost of a bat and a baseball combined is $1.10 and the bat costs 41.00 more than the ball, how much is the ball?

Baseball and Bat {Tricky Math Questions}

This problem, mathematically speaking, is very similar to one of the other ones on this list.

8. Question: When is Cheryl’s birthday?

Birthday Math Problem {Tricky Math Questions}
Image via Facebook/Kenneth Kong

If you’re having trouble reading that, see here:

“Albert and Bernard just became friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of 10 possible dates.

May 15 May 16 May 19

June 17 June 18

July 14 July 16

August 14 August 15 August 17

Cheryl then tells Albert and Bernard separately the month and the day of her birthday respectively.

Albert: I don’t know when Cheryl’s birthday is, but I know that Bernard doesn’t not know too.

Bernard: At first I don’t know when Cheryl’s birthday is, but I know now.

Albert: Then I also know when Cheryl’s birthday is.

So when is Cheryl’s birthday?”

It’s unclear why Cheryl couldn’t just tell both Albert and Bernard the month and day she was born, but that’s irrelevant to solving this problem.

9. Question: Find the missing letter.

Crazy Algebra Question, hard math problems
Image via Facebook/The Holderness Family

This one comes from a first grader’s homework.

10. Question: Solve the equation.

Japanese Math Problem, hard math problems
Image via YouTube

This problem might look easy, but a surprising number of adults are unable to solve it correctly.

11. Question: Where should a line be drawn to make the below equation accurate?

boy struggling Never Say to a Teacher, hard math problems

5 + 5 + 5 + 5 = 555.

12. Question: Solve the unfinished equation.

Math Brain Teaser, hard math problems

Try to figure out what all of the equations have in common.

13. Question: How many triangles are in the image above?

Triangles Math, hard math problems

When Best Life first wrote about this deceiving question, we had to ask a mathematician to explain the answer!

14. Question: Add 8.563 and 4.8292.

6th grade math decimal addition, hard math problems

Adding two decimals together is easier than it looks.

15. Question: There is a patch of lily pads on a lake. Every day, the patch doubles in size…

Hanging Lake Colorado Enchanting Hideaways in the U.S., hard math problems

… If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?

16. Question: How many feet are in a mile?

Man holding ruler, hard math problems

This elementary school-level problem is a little less problem solving and a little more memorization.

17. Question: What value of “x” makes the equation below true?

person overthinking, stressed, hard math problems

-15 + (-5x) = 0

18. Question: What is 1.92 divided by 3?

decimal division 6th grade math questions, hard math problems

You might need to ask your kids for help on this one.

19. Question: Solve the math equation above.

Tough Math Equation, hard math problems
Image via YouTube

Don’t forget about PEMDAS!

20. Question: How many zombies are there?

6th grade math zombies question, hard math problems

Finding the answer to this final question will require using fractions.

DMU Timestamp: May 06, 2020 21:48

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