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 of the lite version: 1) 1 to 3 digits in each number 2) Tutorial animation speed setting 3) User settings for up to 5 users 4) "Play Tutorial" button to show the step by step solution for each problem 5) "Hint" button for instructional guidance on current step 6) "Help" button for automatic completion of current step The full version has
Subtraction ! ! is a free educational mobile app By Horizon Business, Inc..It helps students practice the following standards .
Developer URL: NA
Software Version: 1.6.4
Release Date: 2012-01-10T07:42:48Z