42-6=
23-8=
14-8=
39+4=
43+57=
100-20=
25+36=
65-15=
84-51=
10+56=
50+16=
49-9=
17-8=
26+40=
38+9=
25+7=
78-30=
39+2=
87-30=
45-6=
9+36=
73-7=
92-(35-30)= 65-30+5= 27+(16+4)=
6+90= 88-8= 78-70= 7+40=
15+5=
13﹣9=
5+9=
6+8=
14﹣6=
15﹣7=
17﹣8=
7+4=
13-7= 12-5= 11-4= 25+70-80=
14-9= 28-5= 44+5= 32-2+58=
27-5= 63-50= 89-6= 90-50+42=
90-40= 48+20= 6+63= 40+20+6=
13-6= 86-60= 39-20= 54+3-5=
13-7=
24-6=
44+9=
40+34-9=
25-7=
18+22=
36-10=
34-20+6=
71+8=
63-50=
80-30=
72-70+8=