36-3=
9-6=
99-6=
17-5=
57-5=
13-7=
43-7=
25-8=
65-8=
40+30= 67+10= 38-8= 60+5=
80-50= 40-40= 63-50= 43-3=
39-30= 6+20= 92-12= 42+0=
70+5= 56-6= 84-80= 60+5=
16-7= 30+5= 42-40= 7+8-10=
6+20= 56-6= 20+7= 53-3+4=
84-4= 30+9= 9+9= 17-8-4=
11-8= 40+5= 17-9+5= 19-3-8=
9+79 97 6+808+60 67-8 57-8
45角 54角 99分1元 6元7角 67角
37-6= 92-9= 78-70= 98-50=