10x5
50
30/5
6
12-5
7
1+1
2
12x7
84
49/7
27-13
14
26+54
80
19x7
133
24/4
89-63
26
123+123
246
26x12
312
72/8
9
167-69
98
5467+1223
6690
29x13
377
38/2
19
1956-726
1230
123456789+123456789
246913578