20+37=
66-40=
96+4=
67-15=
19-7=
26+30=
58-18=
26+54=
23+6=
15-6=
23+77=
100-45=
15-8=
56-5=
20+40=
22-(3+6)=
33+6=
48+2=
65-40=
45-5-6=
83-5=
9+54=
19-9=
53+(85-80)=
77-9=
11+60=
6+72=
22+9-7=
+9<17 18+5<27- 59>20+
41+839
45+3040+35
84-775
38+4081-9
82-4051-9
66+786-8
86-40=
38+9=
14-5=
7+31=
72-8=
40-20+3=
27-8=
40+25=
75-9=
9+9=
24+30=
6+47=
16-7=
67-6=
25+25=
5+7=
90-70=
13-6=
59-30=
32+10=
76-20=
40+18=
96-56=
30+70=
95-3=
70+5=
40+60=
6+25=
35+50=
74-8=
56-9
67+30=
45+50=
55-20=
①30+6 ②8+50 ③13-5
④84-4 ⑤9+9 ⑥47-40
<<<<<
17﹣88 14﹣76 9+313
11﹣811﹣4 13﹣914﹣7
30+947﹣7 65+3064+30
15﹣813﹣6 55﹣555﹣50