How do you round 2570278 to the nearest hundred thousand?

Answer 1

When you round numbers you need to remember the rounding rules. If a number is 5 or above you round up. It a number is 4 or below you round down.
So:

2,570,278
2,570,280
2,570,300
2,570,000
2,570,000
2,600,000 <---Final Answer
3,000,000 <---Further Rounding