Group 1: Multiply 1 digit by 1 digit
2x4
8
7x3
21
13 x 2
26
23 x 12
276
25
15
4x4
16
12 x 4
48
35 x 21
735
3 x 40
120
6x4
24
6x7
42
23 x 3
69
45 x 13
585
100 x 10
1000
6x6
36
8x8
64
34 x 3
102
36 x 26
936
43 x 2
86
8x3
24
9x8
72
45 x 5
225
87 x 36
3132
60 x 3
180