Matching Pairs COMPARAMOS MASASOnline version RELACIONA LAS CANTIDADES QUE FALTAN EN CADA CASO by Lidia Gongora 1 --- + 9 = 21 2 49 + 13 = 3 --- + 12 = 19 4 28 + 23 = 5 14 + --- = 29 6 --- + 19 = 40 7 8 + --- = 22 15 51 21 14 62 7 12