How to calculate 4 = 3 with four operations and brackets

How to calculate 4 = 3 with four operations and brackets


4-4+4-4/4=4-1=3



How to calculate 5 = 12 with four operations and brackets


5+5+(5+ 5)÷ 5=12



In four mixed operations, if there are two levels of operations in parentheses, we should calculate () first, then () method


Multiplication, addition and subtraction