3+?=8,6+?=13,12+?=48 ?-6=2,?-13=16,?-19=23 34-?=13,45-?=18,60-?=38 22+44=?,29+33=?,55+55=? 6*6=?,6*7=?,6*8=? --- ?+14=33-18,?-23=18+26 17+?+17=57,16+17+18+19=? 13+?=25-?,26+19+32-28=? ?-17=?+12,99-38-22-19=?
3
+
=
8
6
+
=
13
12
+
=
48
-
6
=
2
-
13
=
16
-
19
=
23
34
-
=
13
45
-
=
18
60
-
=
38
22
+
44
=
29
+
33
=
55
+
55
=
6
×
6
=
6
×
7
=
6
×
8
=
+
14
=
33
-
18
-
23
=
18
+
26
17
+
+
17
=
57
16
+
17
+
18
+
19
=
13
+
=
25
-
26
+
19
+
32
-
28
=
-
17
=
+
12
99
-
38
-
22
-
19
=
随风潜入夜