Addition
Subtraction
2x1 Digit Multiplication
2x2 Digit Multiplication
Rounding
100

144+949

1,093

100

656-294

362

100

15x3

45

100

15x26

390

100

Round 897 to the hundreds place

900

200

5,334+7,921

13,255

200

873-598

275

200

20x8

160

200

45x30

1,350

200

Round 2,119 to the thousands place

2,000

300

4,592+6,721

11,313

300

34,804-19,352

15,452

300

48x4

192

300

52x21

1,092

300

Round 13,778 to the thousands place

14,000

400

34,112+61,845

95,957

400

82,114-51,632

30,482

400

67x5

335

400

65x81

5,265

400

Round 349,241 to the ten thousands place

350,000

500

457,122+125,629

582,751

500

349,267-179,183

170,084

500

99x8

792

500

89x72

6,408

500

Round 634,784 to the ten thousands place

630,000

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