68=________+8 40+________=47 56-________=6
75=5+________ ________+60= 63 48-________=40
34=________+30 4+________=44 100-________=80
7________5=12 46________6=40 80________8=88 17________8=9
7+40________74 40+8________8+40
7________13-7 73-40________74-30
50+3= 53-3= 7+40= 17-7=
8+10= 65-5= 3 +70= 39-9=
37-7= 68-8= 4+90= 30+8=
1+20= 90+7= 4+60= 99-9=