In the expression 100 - 30 ÷ 5 if you follow the rules of operations, you have to do all divisions before you do subtractions, so 100 - 30 ÷ 5 becomes 100 - 6 which is 94.
In the expression 100 - 30 ÷ 5 if you follow the rules of operations, you have to do all divisions before you do subtractions, so 100 - 30 ÷ 5 becomes 100 - 6 which is 94.