Basic Operations

You already know addition ($+$), subtraction ($-$), multiplication ($\times$), and division ($\div$). These four operations form the foundation.

Most programming languages use $+$, $-$, $*$, and $/$ symbols. For example, $7 + 3 = 10$, $7 - 3 = 4$, $7 \times 3 = 21$, and $7 \div 3 = 2.333...$

But division has a twist. Sometimes you want the decimal result, sometimes just the whole number part. That difference matters for array indexing, splitting items into groups, and countless other tasks.