Fill in the Blanks Aprendiendo a sumarOnline version Realizar las siguientes sumas by Mirna Martinez 1 2 4 7 7 3 8 6 5 9 2 + 1 = 4 + 5 = 3 + 3 = 1 + 4 = 3 + 5 = 4 + 3 = 1 + 1 = 2 + 2 = 3 + 4 = 4 + 5 = 9