patterns
1,2,3,4,
5
2-1=
1
6+2=
8
Rx6=18
3
45x1=
45
2,5,8,
11
10-4=
6
11+12=
23
6xt=12
6
6x3=
18
3,6,4,2,
5
54-36=
18
54+56=
110
48/h=6
8
10x7=
70
10,20,10,
20
106-12=
94
112+52=
164
106/k=53
2
5x60=
300
114,134,154,
174
408-306=
102
502+406=
908
806xb=806
1
114x10=
1140