1+1= how much?
is 2
1+7= how much?
is 8
1+6 = how much?
is 7
1+3= how much?
is 4
1+8= how much?
is 9
1+5= how much?
is 6
1+4= how much?
is 5
1+9= how much?
is 10
1+2= how much?
is 3
1+0= how much?
is 1