Simple Arithmetic
The Simple Arithmetic program displays addition, subtraction, multiplication and division sums, each using two numbers randomly generated from the range 1 to 10. The operation is chosen by using one of the push buttons labelled Add, Subtract, Multiply or Divide. The operation may also be randomly generated by using the Any push button.
Yellow circles illustrate the sum. When the Hint button is used, these circles are slowly rearranged to form the answer. A grid with columns and rows numbered is displayed as an aid to viewing the rearrangement. When the hint display is complete, the circles revert to their original arrangement.
On the righthand side of the window is a numbered grid on which the user must click to indicate the answer to the sum. If the answer is correct, the grid square is displayed with a green background followed by a congratulation message. If the answer is not correct, the grid square displays a red background. The user must then make another attempt to choose the correct answer.
An overall success rating of up to 5 stars is displayed once a correct answer has been achieved. Five points are given for one or more correct answers achieved at first attempt; but only three points are awarded if the Hint button was used. A point is deducted for each incorrect answer.
The following image shows the hint information after the circles have been rearranged to form the answer.
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