Mental Exercise Generator Lv.2

Let's enjoy mental calculation! [ Levels: 1 2 3 4 5 6 7 8 9 10 ]
Question #1 Question #2 Question #3 Question #4 Question #5
70
49
32
32
75
38
39
60
5
31
13
25
73
78
12
89
81
19
43
15
46
33
15
42
31
52
25
29
45
32
57
38
54
30
58
20
-7
23
-42
79
94
13
-65
81
10
77
8
47
47
18
Question #6 Question #7 Question #8 Question #9 Question #10
20
31
86
8
9
84
17
89
11
98
22
63
47
17
51
87
62
9
62
40
39
36
35
-42
-56
82
-86
33
16
46
83
-65
15
97
36
35
60
11
43
38
-32
72
76
11
71
2
69
80
98
-38
Questions generated: Sat Jun 13 06:00:27 +0900 2026
Answers are [556, 304, 287, 361, 361, 422, 259, 481, 321, 295]
Reload to get new questions. You can change the difficulty levels: 1 2 3 4 5 6 7 8 9 10
(for iPhone)