Rounding to nearest 10
Rounding to nearest 100
Estimating
Rounding Challenge!
CHALLENGE!
100

What is 79 rounded to the nearest 10? 

80

100

What is 240 rounded to the nearest 100? 

200

100

Estimate the sum of 47 and 32. 

50 plus 30 = 80 

100

What is 421 rounded to the nearest 10? 

420

100

459 - 372

87

200

What is 483 rounded to the nearest 10? 

480

200

What is 804 rounded to the nearest 100? 

800
200

Estimate the sum of 122 and 334.

120 + 330 = 450

200

What is 590 rounded to the nearest 100? 

600

200

285 + 285

570

300

What is 13 rounded to the nearest 10?

10

300

What is 777 rounded to the nearest 100? 

800

300

Estimate the sum of 68 and 21.

70 + 20 = 90

300

What is 286 rounded to the nearest 10? 

290

300

40 x 7 

280

400

What is 826 rounded to the nearest 10?

830

400

What is 375 rounded to the nearest 100? 

400

400

Estimate the sum of 51 and 29. 

50 + 30 = 80

400

What is 481 rounded to the nearest 10? 

480

400

60 x 2 

120

500

What is 555 rounded to the nearest 10?

560

500

What is 124 rounded to the nearest 100?

100

500

Estimate the sum of 25 and 46. 

30 + 50 = 80

500

What is 1,299 rounded to the nearest 100? 

1,300

500

824 - 618

206

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