Smiley Maths is a simple Excel based worksheet. The object of the program is to allow the user to check correct answers entered by simply observing the expression on the smiley character.

Subtraction

Multiplication

Division

• Enter a value in cell A1 (the first number in the problem). The corresponding numbers in columns A and H will change accordingly.
• Enter a number into cell E1 (the second number in the problem). The corresponding numbers in columns C and J will also change.

By entering the correct values to the sum in column E and H the smiley will smile. An incorrect answer will will cause smiley to frown.