(Blank)
(Blank)
100

Round to the nearest 1,000. 

5,783

6,000

100

Round to the tens, then estimate. 

56 + 93=

60 + 90150

200

Round to the hundreds, then estimate. 

546 + 109=

500 + 100600

200

Round to the nearest 100,000. 

491,287

500,000

300

Round to the hundreds, then estimate. 

997 - 439=

1,000 - 400600

300

Round to the nearest 1,000,000. 

3,143,520

3,000,000