double by single digit
78 x 5 =
390
42 x 35 =
1,470
589 x 34 =
20,026
1,678 x 5 =
8,390
99 x 8 =
792
54 x 68 =
3,672
698 x 45 =
31,410
4,629 x 23 =
106,467
98 x 7 =
686
64 x 39 =
2,496
539 x 71 =
38,269
6,338 x 184 =
1,166,192
92 x 3 =
276
74 x 85 =
6,290
786 x 79 =
62,094
5,923 x 234 =
1,385,982
75 x 8 =
600
99 x 99 =
9,801
974 x 87 =
84,738
5,622 x 4,987 =
28,036,914