Matching Pairs Sumando 10 y 1Online version Descomponer en 10 y 1 by María Piccardo 1 10 + 1 + 1 + 1 + 1 2 10 + 1 + 1 + 1 + 1 + 1 3 10 + 10 +. 10 4 10 + 10 5 10 + 1 +. 1 6 10. +. 10 + 1 + 1 + 1 20 30 23 12 15 14