Rounding to nearest 10
Rounding to nearest 100
Estimate for addition
Estimate for subtraction
Rounding word problems
100

27 rounded to the nearest ten is?

30

100

114 rounded to the nearest hundred is?

100

100

Estimate 27+62

90

100

Estimate 42-11

30

100

Mike has 57 action figures. Alex has 186 action figures. Estimate the number of action figures Mike and Alex have altogether.

250 action figures

200

93 rounded to the nearest ten is?

90

200

625 rounded to the nearest hundred is?

600

200

Estimate 163+200

400 or 360

200

Estimate 98-49

50

200

There are 298 students in third grade. If 227 students take the bus to school, about how many students do not take the bus?

100 or 70 students

300

158 rounded to the nearest ten is?

160

300

471 rounded to the nearest hundred is?

500

300

Estimate 323 +151

500 or 470

300

Estimate 287-162

100 or 130

300

One skeleton museum has 189 bones. Another skeleton has 232 bones. About how many bones are in the two skeletons?

400 or 420

400

480 rounded to the nearest ten is?

480

400

785 rounded to the nearest hundred is?

800

400

Estimate 169+354

500 or 520

400

Estimate 299-61

240 or 200

400

There are 515 sheets of paper in the pack. Wendy used 137 sheets already. About how many sheets of paper does she have left? 

400 or 380

500

195 rounded to the nearest ten is?

200

500

985 rounded to the nearest hundred is?

1000

500

Estimate 321+293

600 or 610

500

Estimate 823-242

600 or 580

500

Beth scored 542 points. This was 158 points more than Ian scored. About how many points did Ian score? 

300 or 380

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