Arithmetic Expressions

Mathematical phrases like 13+2

Mathematical phrases like 13+2, 20-4, 12×5, and 18÷3. Each expression has a specific value when calculated. For example, 13+2 = 15. We use the equalit

We can compare expressions using '='

We can compare expressions using '=', '<', and '>' signs based on their values, not their appearance. For example, 10+2 > 7+1 because 12 > 8. We compa

Terms are parts of an expression

Terms are parts of an expression separated by '+' signs. In 12+7, the terms are 12 and 7. For subtraction like 83-14, we convert it to 83+(-14), makin

When an expression has multiple operations

When an expression has multiple operations without brackets, we first evaluate each term completely (including any multiplication or division within t

Brackets clarify the order of operations

Brackets clarify the order of operations. We always solve expressions inside brackets first. For example, 30+(5×4) means first calculate 5×4=20, then