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63-3= 70+8= 30+6= 80+5=
20+8= 83-3= 91-1= 72-2=
50+7= 2+80= 70+6= 96-90=
23-3= 16-9= 75-5= 33-30=
12-7= 40+3= 9+40= 30+6=
42+545+2 34 – 434+4 63+678 – 6
55+4 = 67+2 = 40+50 = 80 – 30 = 70 – 20 =
55+40 = 37+60= 40+28 = 76 +10 = 40+8=
83 – 20 = 74 – 60 = 37 – 3 = 63 – 20 = 46 – 10 =
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