Rounding to the Nearest 10
Rounding to the Nearest 100
Rounding to Estimate
Three-Digit Addition
Three-Digit Subtraction
100

Round 17 to the nearest 10.

What is..... 20. 

100

Round 46 to the nearest 100. 

What is..... 0. 

100

Jim has 33 points and Bailey has 29 points. About how many points do they have together?

What is.... about 60. 

100

127 + 152=

279

100

427- 112= 

What is... 315. 

200

Round 61 to the nearest 10.

What is..... 60. 

200

Round 324 to the nearest 100. 

What is..... 300. 

200

Caleb took 58 minutes to play and Kelly took 72 minutes to play. About how many minutes did they play together? 

What is..... 130 minutes. 

200

241 + 138= 

What is.... 379

200

125- 111=

What is... 14. 

300

Round 95 to the nearest 10. 

What is....... 100. 

300

Round 789 to the nearest 100. 

What is.... 800. 

300

Teddy had 101 bones. Ozzy had 99 bones. About how many bones do they have together? 

What is.... about 200 bones. 

300

341 + 483= 

What is.... 824

300

567- 335= 

What is.... 232. 

400

Round 143 to the nearest 10. 

What is...... 140. 

400

Round 999 to the nearest 100. 

What is.... 1,000. 

400

Chip has 521 cookies. Jo has 302 cookies. How many cookies in all? 

What is.... about 820. 

400

274 + 233= 

What is... 507.

400

684- 229= 

What is..... 455.

500

Round 578 to the nearest 10. 

What is....... 580. 

500

Round 3,455 to the nearest 100. 

What is..... 3,500. 

500

John drove the car for 115 minutes. Bob drove the car for 114 minutes. About how many minutes have they driven? 

What is.... about 230 minutes. 

500

165+ 128= 

What is.... 293

500

943- 562= 

What is.... 381.