Matching Pairs SUMASOnline version PRACTICO SUMAS by DIANA VALLE 1 18 + 5= 2 7 + 3 = 3 40 + 5 = 4 50 + 8 5 5 + 6= 6 10 + 9 = 7 10 + 10 = 8 34 + 3 = 9 2 + 2= 10 20 + 10 = 37 20 58 45 4 11 23 30 10 19