1+1=2 2+2=4 2+3= 5 4+5 = 9 5+ 5= 10 3+4= 7 4+4=8 3+3=6 2+5 = 7 6+2= 8 7+3= 10 8+1= 9 5+ 3=8 10 2+3= 3+