# Mathematical Symbols Puzzles

We all come across many mathematical or numerical puzzles, which are based on the usage of mathematical symbols or notations. At times such puzzles can even be solved by changing the way things are written.

In this post I am presenting 3 such interesting puzzles. Keen observation and simple application of logic is required to solve them. So here you go –

1. Make this equation valid with single stroke of pen (i.e. just by adding a line somewhere): 5+5+5 = 550
2. Make 120 using 5 zeros. You can use any mathematical notation/symbol
3. What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller

#### Vineet Patawari

Hi, I'm Vineet Patawari. I fell in love with numbers after being scared of them for quite some time. Now, I'm here to make you feel comfortable with numbers and help you get rid of Math Phobia!

## 13 thoughts to “Mathematical Symbols Puzzles”

1. narayanan r s says:

1. 5+5+5?550
2. (0!+0!+0!+0!+0!)!=120
3. Question not clear

2. Akshay says:

1. 5+545=550
2. (cos0+cos0+cos0+cos0+cos0)! or ((sin0)!+(sin0)!+(sin0)!+(sin0)!+(sin0)!)!
3. 5.9

3. pratik says:

5+545=550
(0!+0!+0!+0!+0!)!=120
5>=9

4. saptarshi chaudhuri says:

5+545=550
(0!+0!+0!+0!+0!)!=120
question incomplete………

5. Ameesha says:

1. donno
2. 5+5+5?550
3. 5.9

6. Meetali says:

1. 545+5=550
2.(0!+0!+0!+0!+0!)!=120 (because 0!=1)
3.5>9

7. Arasu says:

1) 545+5=550
2) (0!+0!+0!+0!+0!)! = 120
3) 5.9

8. Arasu says:

545+5=550

9. Raja says:

1. 545 + 5 = 550

2. (0!+0!+0!+0!+0!)! = 120

3. 5.9

10. Mukesh Duggal says:

1. 5+5+5?550
2. (0!+0!+0!+0!+0!)!=120
3. Question not clear

11. Kaustav says:

(0!+0!+0!+0!+0!)! = 120

12. Hey…Anish your are absolutely right. Congrats buddy.

13. Anish says:

(0!+0!+0!+0!+0!)!