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addition
subtraction
multiplication
100
5+4
9
100
5-2
3
100
1x1
1
200
5+5
10
200
6-4
2
200
2x3
6
300
8+4
12
300
5-1
4
300
10x2
20
400
4+2
6
400
10-7
3
400
2x2
4
500
8+5
13
500
13-2
11
500
4x2
8