Estimating Practice

Round to the Nearest 10

100

46

50

200

58

60

300

125

130

400

473

470

500

98

100

Round to the nearest 100

100

347

300

200

426

400

300

147

100

400

287

300

500

989

1000 or 1,000

Find the exact total

100

37 + 23

60

200

471+273

744

300

735+235

970

400

872+65

937

500

987+385

1372 or 1,372

Find the estimated total (Round to the hundreds place)

100

543+143

First Round to nearest hundred.

Then add.

600

200

373+425=

First Round to nearest hundred.

Then add.

800

300

725+132=

First Round to nearest hundred.

Then add.

800

400

247+357=

First Round to nearest hundred.

Then add.

600

500

473+510=

First Round to nearest hundred.

Then add.

1000 or 1,000