Matching Pairs sumas menores de 10Online version Realizar sumas sencillas by Mayte González 1 1 + 0 2 4 + 3 3 2 + 1 4 4 + 4 5 3 + 3 6 2 + 2 7 3 + 2 8 1 + 1 9 6 + 3 10 5 + 5 4 10 5 7 6 8 2 1 9 3