6th grade math
posted by Claire .
Estamate each sum or diffrence by rounding to the greatest place value.
998,927100,724
would the answer be
1,000,000200,000=800,000
:)

No.
100,724 doesn't round to 200,000 
what does it round to then? is it 100,000?

Yes.

67+14=
70+10= 80 is it right 
80 is right

Is 2,856 rounded to 3,000?

Yes

583329
580330 is 250
Right? 
Ali, a gardener, is preparing to fertilize a lawn.the lawn is 30 yards by 25 yards. 1 bag of fertilizer will cover an area of 100 square yards.how many bags of fertilizer does Allie need to buy?

Ali, a gardener, is preparing to fertilize a lawn.the lawn is 30 yards by 25 yards. 1 bag of fertilizer will cover an area of 100 square yards.how many bags of fertilizer does Allie need to buy?
estimate each product or quotient 
i need helpppppppp:]]]]]]