Mathematical Symbols

Symbols save time and space when writing. Here are the most common mathematical symbols:

Symbol Meaning Example
+ add 3+7 = 10
- subtract 5-2 = 3
× multiply 4×3 = 12
/ divide 20/5 = 4
( ) grouping symbols 2(a-3)
[ ] grouping symbols 2[ a-3(b+c) ]
{ } set symbols {1,2,3}
π pi A = πr2
infinity ∞ is endless
= equals 1+1 = 2
approximately equal symbol approximately equal to π approximately equal symbol3.14
not equal to π 2
< ≤ less than, less than or equal to 2 < 3
> ≥ greater than, greater than or equal to 5 > 1
radical symbol square root ("radical") √4 = 2
° Degrees 20°
therefore symbol Therefore a=b therefore b=a

 

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