684 - 10 =
57000
3498 - 100 =
5305
460
2845 - 1000 =
3398
5295 + 10 =
1845
84000
6000
840 x 100 =
4305 - 1000 =
360 + 100 =
240
57 x 1000 =
24 x 10 =
60 x 100 =
674
