Matching Pairs matematicaOnline version flechas by mauro ciarlantini 1 23 x 2 - 29 2 76 + (8x2) 3 466-128+137 4 25 x 3 5 30 - ( 9 x 3 ) 6 245 + 176 - 207 7 638 - 429 - 109 8 81 + 45 - 33 17 25 + 25 + 25 100 93 3 475 92 214