Use the symbol of addition, subtraction and equal to, to write number sentence based on the given situation.

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: \(3+2=5\)

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: \(3+2=5\)

Year 1 Mathematics

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