Åk 6–9
 
English/فارسی

2.2 Terminology
In mathematics there are used many expressions that belong to the mathematical language, and naturally, it is important if you understand the meaning of those different expressions. If you can master these expressions, then you will have an easier time understanding and succeeding with mathematics. Here below is a list of some words that are associated with addition and subtraction.


Addition

Symbol: +

Example of addition:
"Two plus seven is equal to nine"

2
+
7
=
9
Term + Term = Sum

Words that can mean to add:

  • "adding"
  • Calculated the sum
  • Sum up
  • together

Subtraction

Symbol: -

Example of subtraction:
"Nine minus six is equal to three"

9
-
6
=
3
Term - Term = Difference

Words that can mean to subtract:

  • minus
  • calculate the difference
  • subtract


From now on we will use the words adding and subtracting when we describe addition and subtraction.