8+?=16,7+?=18,13+?=25 ?-4=6,?-12=12,?-23=18 37-?=10,22-?=19,50-?=23 26+16=?,62+38=?,102-45=? 2*7=?,2*8=?,2*9=? --- ?+8=27-3,40-?=12+4 32+?+28=90,11+21+31+41=? 24+?=42-?,15+24+16+37=? 35-?=12-?,17-12+13-16=?
8
+
=
16
7
+
=
18
13
+
=
25
-
4
=
6
-
12
=
12
-
23
=
18
37
-
=
10
22
-
=
19
50
-
=
23
26
+
16
=
62
+
38
=
102
-
45
=
2
×
7
=
2
×
8
=
2
×
9
=
+
8
=
27
-
3
40
-
=
12
+
4
32
+
+
28
=
90
11
+
21
+
31
+
41
=
24
+
=
42
-
15
+
24
+
16
+
37
=
35
-
=
12
-
17
-
12
+
13
-
16
=
火眼金睛看