64-29+35= 47+28-19=
92- (36+29)= 63-45+17=
□○□○□=□(只)
41-3=
20+37=
59-3=
25+10+7=
5+42=
27+8=
30+22=
30+(28-20)=
93-60=
40-9=
64-30=
56-(32+8)=
96-60=
37+50=
80-8 =
25+9 =
63-6 =
79-30=
48+2=
20+45=
74-8=
75+7=
82-4=
42+33=
36+40+2=
59-9-20=
75-(10+50)=
63-30+5=
56+5-20=
48+(18-9)=