addition
subtraction
estimate
addition 2
subtraction 2
100

1,282+2,372

3,654

100

5,139-5,100

39

100

Round to the nearest tens place:

273

270

100

36,281+27,196

63,477

100

54,354-42,653

11,701

200

2,382+4,372

6,754

200

4,264-2,146

2,118

200

Round to the nearest hundreds place:

3,628

3,600

200

45,348+24,719

70,067

200

84,522-25,458

59,064

300
3,462+4,281

7,743

300

6,148-4,354

1,794

300

Round to the nearest thousands place:

3,971

4,000

300

52,354+48,156

100,510

300

75,582-64,268

11,314

400

5,382+5,271

10,653

400

9,311-5,164

4,147

400

Round to the nearest ten thousand:

27,291

30,000

400

536,256+248,634

784,890

400

568,245-455,652

112,593

500

8,683+6,372

11,643

500

9,216-2,487

6,729

500

Round to the nearest hundred thousands place:

748,291

700,000

500

872,156+95,215

967,371

500

922,453-543,542

378,911