Mathematical symbols/Printable version
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Mathematical symbols
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Plus sign
Plus sign
+
IntroEdit
The plus sign + is used for addition.
AdditionEdit
Addition is about combining numbers to make a bigger number. For example, 2 + 2 is 4.
Plus or minus sign
Plus or minus sign
±
±
IntroEdit
The plus or minus sign ± can be replaced with a plus sign + or a minus sign −.
Addition and subtractionEdit
3 ± 3 = 6
The equation above would be 3 + 3 = 6.
3 ± 3 = 0
The equation above would be 3 − 3 = 0.