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Estimating Sums and Differences by Rounding

Authored by Anthony Clark

Mathematics

4th Grade

CCSS covered

Estimating Sums and Differences by Rounding
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round to the nearest hundred to estimate the sum.
479 + 432 = 

800

1,000

900

100

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Estimate the sum: 1,432+1,564

2,000

2,100

2,996

3,000

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If you have 382, you might say you have ABOUT...

400

300

450

350

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

400 + 100 = 500
400 + 200 = 600
400 + 200 = 500
300 + 100 = 400

Tags

CCSS.2.NBT.B.5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There are 324 kids at The Green School and 399 kids at The Blue School. Estimate how many kids there are in total to the nearest hundred.

640

700

345

900

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

To celebrate Halloween a family is counting pumpkin seeds. Max and his dad counted 243; Brita and her mom counted 333. To the nearest ten, about how many more seeds did Brita and her mom count?

85

90

100

500

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Estimate the sum of 42+59 by rounding to the nearest tens

110

100

111

90

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