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Estimate Sums Using Rounding

Authored by Carolyn Thomas

Mathematics

3rd Grade

CCSS covered

Used 50+ times

Estimate Sums Using Rounding
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round each number to the nearest ten. Then find the estimate using the rounded numbers.

24 + 38

20 + 40 = 60

30 + 30 = 60

25 + 35 = 60

30 + 40 = 70

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round each number to the nearest ten. Then find the estimate using the rounded numbers.

47 + 56

40 + 50 = 90

50 + 60 = 110

45 + 55 = 100

50 + 50 = 100

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round each number to the nearest ten. Then find the estimate using the rounded numbers.

63 + 29

60 + 30 = 90

60 + 20 = 80

70 + 30 = 100

65 + 25 = 90

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round each number to the nearest ten. Then find the estimate using the rounded numbers.

82 + 19

80 + 20 = 100

80 + 10 = 90

85 + 15 = 100

80 + 25 = 105

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

CCSS.2.NBT.B.5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round each number to the nearest ten. Then find the estimate using your rounded numbers.

314 + 421

300 + 400 = 700

320 + 420 = 740

310 + 420 = 730

300 + 420 = 720

Tags

CCSS.2.NBT.B.8

CCSS.2.NBT.A.1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round each number to the nearest ten. and then add the rounded numbers.

569 + 342

500 + 300 = 800

560 + 340 = 900

570 + 340 = 910

600 + 300 = 900

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

CCSS.2.NBT.B.5

CCSS.2.NBT.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Round 657 to the nearest hundred.

600

650

700

660

Tags

CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

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