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izzirpmm
2980 round everything to the nearest tens and add with your head to get it


Kythex
Your answer would be C. 3000

All you need to do is round each number up or down to the nearest hundred and add them.

Therefore, rounding 684 to the nearest hundred would get us to 700. 
2317 rounded to the nearest hundred would bring us down to 2300.

2300 + 700 = 3000

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