September 2018 1 47 Report
AYUDA CON ESTA PORFA GRACIAS
indica si las siguientes igualdades son verdaderas o falsas. Razona tus respuestas.
a(3⋅7)+21=15+10
22-10=8⋅2
(6⋅4)-5=(7⋅2)+7
25:5=(10⋅5)-(9⋅5)
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