700
I think the answer would have to be 749 because usually 0,1,2,3,4 gets rounded down and 5,6,7,8,9 gets rounded up.
1000 is 994 rounded up to the nearest 100.
100
Rounded up to the nearest tens would be 100. Rounded to the nearest tens is 90.
0
743 rounded up to the nearest 100 (hundreds place) is 800.
3,300
200
100
100
4200