Matching Pairs matematica secundariaOnline version operaciones by Domingo Alejo Trinidad Salomon 1 (-8+5) x 4= 2 5-7-6 3 (2)4 = 4 (-5) * (-8)= 5 -8-4-8+20 6 8-4-9+7= 7 (12x5) - 45 = 8 -3-5-8 15 2 -8 -12 2x2x2x2 40 0 -16