2+8=?,7+?=19,14+?=32 ?-9=9,?-16=12,?-15=16 34-?=16,42-?=30,70-?=28 14+16=?,35+27=?,105-37=? 4*4=?,4*5=?,4*6=? --- ?+12=26-5,11-11+100=? 8+?+12=31,12+34+43+21=? 6+?=32-?,32+19+18+5=? ?-13=?+8,40-25+18-32=?
2
+
8
=
7
+
=
19
14
+
=
32
-
9
=
9
-
16
=
12
-
15
=
16
34
-
=
16
42
-
=
30
70
-
=
28
14
+
16
=
35
+
27
=
105
-
37
=
4
×
4
=
4
×
5
=
4
×
6
=
+
12
=
26
-
5
11
-
11
+
100
=
8
+
+
12
=
31
12
+
34
+
43
+
21
=
6
+
=
32
-
32
+
19
+
18
+
5
=
-
13
=
+
8
40
-
25
+
18
-
32
=
中华共和国