$math = 1 + 2 + 3 + 4 + 5 + 6 * 20; The answer is $math - this gives just the amount

$sum = $a + $b; The answer is $sum - this shows addition operator"

$difference = $a - $b; The answer is $difference - this shows subtraction operator

$product = $a * $b; The answer is $product - this shows mutiplication operator

$quotient = $a / $b; The answer is $quotient - this shows division operator

$remainder = $a % $b; Modulus is equal to $remainder - this shows division with remainder operator