When rounding off numbers, the rule is : If the first figure to be discarded is 5 or more then the previous figure is increased by 1.
The first figure to be discarded is 7 therefore the previous number (2) is increased by 1 (to 3).
2786 to the nearest 1000 is 3000.
2786
3000
2786 rounded to the nearest 10 is 2790.
2790
2786.000
5572/1000 2786/500 1393/250
2800
736 to the nearest 1000, is 1000.
850 to the nearest thousand is 1000
1000
All numbers can be written in roman numerals. 2786 is written as MMDCCLXXXVI.
1000
1000
1000