Bruno Coudoin
(algebra_plus.xml)
Responde a algumas perguntas de aritmética.
Num período de tempo limitado, conseguir indicar a soma de duas parcelas.
An addition problem with two numbers is displayed. At the right of the equals sign, give the answer, the sum. Use the left and right arrows to modify your answer and press the Enter key to check if you've got it right. If not, just try again.
