1290
1289.00
When rounding 1289 to the nearest thousand, we look at the hundreds place, which is 8. Since 8 is greater than or equal to 5, we round up. Therefore, 1289 rounds up to 2000 when rounding to the nearest thousand.
100
That is 4800
4198 to the nearest 100 = 4200
100
100
100
853 rounded to the nearest 100: 900. 10853 rounded to the nearest 100: 10900.
2500 is already at the nearest 100.
599 to the nearest 100 is 600.