Rounding - Ten
Rounding - Hundred
Adding 3-digit numbers
Subtracting with Regrouping
Subtracting without regrouping
100

Round 268 to the nearest ten.

270

100

Round 2490 to the nearest hundred.

2500

100

245+678

923

100

453 − 128

325

100

465 − 123

342

200

Round 32 to the nearest ten.

30

200

Round 268 to the nearest hundred.

300

200

759+23

782

200

672 − 348

324

200

687 − 245

442

300

Round 1458 to the nearest ten.

1460

300

Round 999 to the nearest hundred.

1000

300

429+102

531

300

804 − 267

537

300

759 − 438

321

400

Round 27 to the nearest ten.

30

400

Round 76 to the nearest hundred.

100

400

197+199

396

400

913 − 586

327

400

896 − 574

322

500

Round 98 to the nearest ten.

100

500

Round 539 to the nearest hundred.

500

500

848+176

1024

500

1,000 − 647

353

500

978 − 657

321

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