Cálculo mental para crianças

Features Cálculo mental para crianças

This is a mental calculation app for elementary school students.
These are questions involving the 4 operations of mathematics (addition, subtraction, multiplication and division).
A teaching-learning process is adopted that understands the error as something intrinsic and that should not be discarded or faced with strangeness or a feeling of frustration.
Students are encouraged to go ahead, change the operation or generate new questions.