43-7=3________ 61-9=5________ 21-________=17 34-6=2________
17-8________34 23-7________9 56-7________49
18-8________10 24-9________17 36-9________7
________
________ ________ ________ ________
80 71 ________ ________ ________ ________
________
________
79 6 8 77 9 32
________-________=71 ________-________=68
________-________ =73 ________-________=23