Show:
Rounding to nearest 10
Rounding to nearest 100
Rounding to the nearest 1000
Round and Add
Round and Subtract
100

89

90

100

295

300

100

2987

3000

100

398+230=

400+200=600

100

870-286=

900-300=600

200

45

50

200

219

200

200

5769

6000

200

498+174=

500+200=700

200
267-133=

300-100=200

300

159

160

300

1839

1800

300

1923

2000

300

928+212=

900+200=1100

300

454-328=

500-300=200

400

238

240

400

6783

6800

400

2376

2000

400

345+167=

300+200=

400

867-474=

900-500=

500

1834

1830

500

4903

4900

500

9264

9000

500

335+758=

300+800=

500

378-378=

400-400=0