10 x 10
20
12 + 12
24
10 - 10
0
10 x 4
40
30 + 30
60
100 - 5
95
11 x 11
22
100 + 100
200
56 - 8
46
6 x 6
36
45 - 3
42
7 x 7
49
1,000 + 1,000
2,000
11 - 6
5