Subtraction
Addition
Mulitplication
Subtraction+Addition
Random
100
5-3
2
100
5+4
9
100
4x2
8
100
9-2+3
10
100
3+2
5
200
18-9
9
200
23+13
36
200
3x4
12
200
13-7
6
200
4x5
20
300
23-19
4
300
14+35
49
300
6x3
18
300
30+2-3
29
300
12x2
24
400
93-45
48
400
67+39
106
400
62x2
124
400
34+56-10
80
400
34-2
32
M
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