Show:
Rounding 10
Rounding 100
Add to round
Subtract to round
100

Round the number 15 to the nearest 10. 

20

100

Round the number 112 to the nearest 100. 

100

100

1. Add 598 + 345

2. Round the sum to the nearest 10.

940

100

1. 500 - 389

2. Round the difference to the nearest 10

110

200

Round the number 266 to the nearest 10.  

270

200

Round the number 669 to the nearest 100. 

700

200

1. Add 665 + 444 

2. Round the sum to the nearest 100 

1100

200

1. 678 - 399

2. Round the difference to the nearest 10 

280

300

Round the number 311 to the nearest 10.

310

300

Round the number 450 to the nearest 100. 

500

300
1. Add 715 + 99

2. Round the sum to the nearest 100.

800

300

1. 900 - 658 

2. Round the difference to the nearest 100

200

400

Round the number 548 to the nearest 10. 

550

400

Round the number 500 to the nearest 100.

500

400

1. Add 399 + 666 

2. Round the sum to the nearest 100.

1100

400

1. 500 - 198 - 101

2. Round the difference to the nearest 10

200

500

Round the number 9671 to the nearest 10. 

9670

500

Round the number 7836 to the nearest 100. 

7800

500

1. Add 176 + 221 + 55

2. Round the sum to the nearest 10. 

450 

500

1. 1986 - 297 

2. Round the difference to the nearest 100

1700