1 row. number = 473
100 more = 573 100 less = 373
10 more = 483 10 less = 463
1 more = 474 1 less = 472
2nd row. number will be 398 - 100 = 298
100 more = 398 100 less = 198
10 more = 308 10 less = 288
1 more = 299 1 less = 297
3rd row. number will be 890 + 10 = 900
100 more = 1000 100 less = 800
10 more = 910 10 less = 890
1 more = 901 1 less = 899
