기술 Long Addition

Long Addition can help you improve your problem solving speed and accuracy for multi digit addition problems.
If you need a refresher, there is a step-by-step problem solver in the practice area that can read-out the solution to you a step at a time. (Text-to-speech support required.)
Larger, more difficult, problems are unlocked by solving smaller/easier problems.
You can analyze your problem areas with both numerical and color-coded display of your results.
Stay motivated by setting and beating your fastest times.
Find your best rhythm by turning off/on any combination of verbal, sound, and vibration feedback.
This is a free-to-download, ad-supported app.
Thanks for any support.
MATH Domain Development

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