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From Horizon Business, Inc.:
Subtraction ! is a great way to learn and practice subtraction. From simple 1-digit problems to more advanced multi-digit problems, Subtraction ! will provide the user the necessary guidance and practice to master subtraction.Features:1) 1 to 6 digits in each number2) Tutorial animation speed setting3) Random or custom entered problems4) User settings for up to 5 users5) "Play Tutorial" button to show the step by step solution for each problem6) "Hint" button for instructional guidance on current step7) "Help" button for automatic completion of current stepIf you like this app, please consider giving it a rating. Your support will help keep the updates coming! Thank you for your support!