Matching Pairs CÁLCULO MENTALOnline version CÁLCULO by JORGE V.T 1 81:9 2 7+25 3 45+12 4 35-2+4 5 14+27 6 40 X 10 7 75:3 8 15:3 9 91+10 10 8+2+26 57 37 5 36 101 40 32 9 25 41