2+?=9,5+?=14,15+?=37 ?-2=6,?-17=15,?-13=24 48-?=23,58-?=10,40-?=14 24+46=?,35+33=?,74+18=? 5*5=?,5*6=?,5*7=? --- ?+12=33-11,?+15=25+35 22+?+22=66,22+20+18+16=? 23+?=32-?,28+19+31+17=? ?-14=?+14,47-29-11-7=?
2
+
=
9
5
+
=
14
15
+
=
37
-
2
=
6
-
17
=
15
-
13
=
24
48
-
=
23
58
-
=
10
40
-
=
14
24
+
46
=
35
+
33
=
74
+
18
=
5
×
5
=
5
×
6
=
5
×
7
=
+
12
=
33
-
11
+
15
=
25
+
35
22
+
+
22
=
66
22
+
20
+
18
+
16
=
23
+
=
32
-
28
+
19
+
31
+
17
=
-
14
=
+
14
47
-
29
-
11
-
7
=
请品尝鱼虾