Answer:
PEMDAS
1 - Parentheses
2 - Exponents and Roots
3 - Multiplication
4 - Division
5 - Addition
6 - Subtraction
you multiply before you divide and add before you subtract.
Ex: 7 - 1 × 0 + 3 ÷ 3 =
Answer 7 (-1 × 0) + (3 ÷ 3) = 8
Hope this helps!