Addition
Subtraction
Estimation Addition
100

297,188 + 482,557

779,745

100

74,765 - 26,591

48,174

100

Estimate the numbers to the nearest hundred and then add.

78+167+465=

100+200+500=800

200

463,576 + 24,371

487,947

200

822,450 -80,124

742,326

200

Estimate the numbers to the nearest hundred and then add.

65+123+759=

100+100+800=1,000

300

233,010 + 54,040

287,050

300

71,224- 24,433

46,791

300

Estimate the numbers to the nearest hundred and then add.

234+279+363=

200+300+400=900

400

188,388 + 592,536

780,924

400

899,394 - 17,954

881,440

400

Estimate the numbers to the nearest hundred and then add.

156+473+743=

200+500+700=1,400

500

442,423 + 992,950

1,435,373

500

964,978 - 961,233

3,745

500

Estimate the numbers to the nearest hundred and then add.

356+179+954=

400+200+1,000=1,600

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