Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Long Addition & Subtraction 螢幕截圖

iPad

iPhone

About Long Addition & Subtraction

Long Addition & Subtraction is a great way to learn and practice long addition and subtraction.

Features for long addition:
1) 2 or 3 numbers to add (addends)
2) 1 to 6 digits in each addend
3) Random or custom user entered problems
4) Tutorial animation speed setting
5) "Play Tutorial" button to show the step by
step solution for each problem
6) "Hint" button for instructional guidance on
current step
7) "Help" button for automatic completion of
current step

Features for long subtraction:
1) 1 to 6 digits
2) Random or custom user entered problems
3) Tutorial animation speed setting
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

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