Calculation Policy
Addition Method 1 Addition Method 2 Addition Method 3 Addition Method 4 Subtraction Method 1 Subtraction Method 2 Subtraction Method 3 Subtraction Method 4 Multiplication Method 1 Multiplication Method 2 Multiplication Method 3 Multiplication Method 4 Division Method 1 Division Method 2 Division Method 3 Division Method 4 Times Table Reward Scheme
