Evaluating Expressions in Problets

• Please evaluate the expression.
  • Evaluate the expression one step (operator) at a time.
    • At each step, identify the operator that is evaluated next by clicking and dragging the mouse.
      • Click and drag the mouse to cover the operator and its operand(s).
        
        
      • If you do not cover all the operands, your answer will be marked incorrect.
        
        
    • Enter the result of evaluating the operator, in the box that pops up.
      • First, verify the expression.
        If it is not the one you selected, you did not cover all the operands when you dragged the mouse.
        Click on Cancel button, and return to clicking/dragging the mouse again.
        
        
      • If the expression is what you selected, enter the result and click OK.
        
        
      • Follow the instructions for entering the result in the correct format. These same instructions will be displayed every time.
        
        
    • Your answer may be color-coded. If it is marked in green, it is correct. If it is marked in red, it is incorrect.
      
      
    • You can undo one or all previous steps.
      • Click on Edit menu and select Undo last entry or Clear entire answer.
        
        
      • On Windows, you can also click on the right mouse button and select Undo last step or Clear all steps.
        
        
  • After evaluating all the steps, click on the Submit Answer button.