Worksheet: Estimating Sums and Differences of Four-Digit Numbers

In this worksheet, we will practice estimating sums and differences between numbers with up to four digits by rounding to the nearest ten, hundred, or thousand.

Q1:

Choose the number that is closest to 53+83.

  • A300
  • B100
  • C200

Q2:

Choose the number that is closest to 110+368.

  • A400
  • B600
  • C500

Q3:

Which is closest to 7,9093,457?

  • A 5,000
  • B 2,000
  • C 3,000
  • D 1,000
  • E 4,000

Q4:

Which number is nearest to 435+169199?

  • A400
  • B600
  • C500

Q5:

Which number is nearest to 4,877+3,103?

  • A 9,000
  • B 10,000
  • C 6,000
  • D 7,000
  • E 8,000

Q6:

Choose the number that is closest to 96+35.

  • A300
  • B100
  • C200

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