Rounding to the Nearest 10
Rounding to the Nearest 100
Subtraction Problems
Addition Problems
Estimating
100

What is 42 rounded to the nearest 10?

40

100

What is 442 rounded to the nearest 100?

400

100

Rachel read 194 pages and Hannah read 158 pages this month. Who read more pages? How many more?

Rachel read 36 more pages than Hannah

100

23 + 48 = ?

71

200

What is 85 rounded to the nearest 10?

90

200

What is 885 rounded to the nearest 100?

900

200

The school had 253 students, but then 64 students moved over winter break. How many students does the school have now?

189 students

200

857 + 16 = ?

873

300

What is 629 rounded to the nearest 10?

630

300

What is 629 rounded to the nearest 100?

600

300

224 - 115 = ?

109

300

263 + 498 = ?

761

400

What is 972 rounded to the nearest 10?

970

400

What is 972 rounded to the nearest 100?

1000

400

164 - 143 = ?

21

400

405 + 112 = ?

517

400

Which two numbers have a sum closest to 500?

655

300

213

525

300, 213

500

What is 2,264 rounded to the nearest 10? 

2,260

500

What is 2,264 rounded to the nearest 100?

2,300

500

354 - 212 = ?

142

500

The school had 324 students and then 42 moved away. Then 16 more students came to the school. How many students does the school have now?

298 students

500

Which two number have the closest sum to 1000?

655

300

215

525

655, 300