The Concept of Addition and Subtraction

2.1 The Concept of Addition and Subtraction
  • Addition is the operation of adding any two numbers.
  • Subtraction is the operation of finding the difference or value between two groups.
Mathematical sentences
 

Sentences written in numbers and symbols.

Example: 6 monkeys are playing, then 2 monkeys come again.

The number of monkeys is 8 in all.

Mathematical sentences: \(6+2=8\)

 
 

Example: There are 3 green beads and 2 red beads.

The sum of all the beads is 5 beads.

Mathematical sentences: \(3+2=5\)