Make9

: You pickup number plate of a car passing by, take first six numbers and add, subtract these to get a total of 9. This program simulates that game. A good exercise in mental maths.How to Play1. Click Next to start a new game2. Six Digits will then be given for you to make number 9 using the following rules:* Left click on a number to be used in a calculation* Click on + and - sign to select addition or subtraction, result will be calculated and displayed* Right click on a number to undo its inclusion in a calculation* Must use each number once and once only* Can only add or subtract numbers, no multiplications or divisions* Cannot have zero or negative numbers as answers* Can use an intermediate result in calculations* There could be several solutions to a puzzle 3. Scoring is based on the number of puzzles solved within a time limit of three minutes