Round off to the nearest 10
1990
Round off to the nearest 10
2020
Round off to the nearest 100
3400
Round off to the nearest 1000
4000
Round off to the nearest 10
540
Round off to the nearest 100
6700
Round off to the nearest 10
420
Round off to the nearest 100
5900
Round off to the nearest 10
210
Round off to the nearest 100
400
Round off to the nearest 1000
1000
Round off to the nearest 100
1000
Round off to the nearest 10
570
Round off to the nearest 100
1700
Round off to the nearest 1000
9000
