Rounding with Estimating Sums and Differences

Mrs. Krutak used 1,820 pencils last year. This year she thinks she will use 1,932 pencils. About how many pencils is that all together?

• 3,000.
• 3,700.
• 4,000.
• 3,752.

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CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

Approximately how many students went on the field trip to Washington, DC?
DC VISITORS
7th Graders      4,945.
8th Graders      5,623.
9th Graders      1,989.

• 12,557.
• 13,000.
• 12,600.
• 12,400.

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CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

Estimate the difference of 7,900-2,999 by rounding to the nearest thousands

• 6,000
• 4,000
• 5,000
• 3,000

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CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

Estimate the sum: 5,023+6,243

• 12,000
• 9,000
• 11,000
• 11,266

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CCSS.3.NBT.A.2

CCSS.3.OA.D.8

Round this number to the nearest thousand: 578,765

• 578,765

• 578,000

• 8,000

• 579,000

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round: 1,789,567

• 1,789,600

• 1,000,000

• 2,000,000

• 1,800,000

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest hundred thousand: 533,378

• 530,000

• 533,378

• 500,000

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest thousand: 89,234

• 89,000

• 90,000

• 89,234

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

When you see the word ABOUT in math, you know to . . . ?

• add

• subtract

• estimate

• guess

Tags

CCSS.3.OA.D.8

Estimate the sum. 108,925 + 709,862

• 817,878
• 800,000
• 600,000
• 600,937