x2 and x4
9 x 2 =
18
10 x 5 =
50
4 x 9 =
36
986 x 1 =
986 x 1 = 986
2 x 7 =
14
8 x 5 =
40
6 x 9 =
54
10 x 45 =
10 x 45 = 450
4 x 7 =
28
5 x 9 =
45
9 x 7 =
63
2 x 16 =
2 x 16 = (2 x 10) + (2 x 6) =
20 + 12 = 32
4 x 8 =
32
10 x 8 =
80
9 x 9 =
81
4 x 19 =
4 x 19 = (4 x 10) + (4 x 9) =
40 + 36 = 76
6 x 4 =
24
5 x 7 =
35
8 x 9 =
72
9 x 12 =
9 x 12 = 9 x (9+3) = (9 x 9) + (9 x 3) =
81 + 27 = 108
OR 9 x 12 = (9 x 10) + (9 x 2) =
90 + 18 = 108