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Worksheet: Estimating Decimal Products

Q1:

Jennifer wants to buy a pair of jeans that cost $49.99. The sign on the display says that the jeans are 5 9 off. Which expression can be used to estimate the discount?

  • A 5 0 × 5 . 9
  • B 5 0 × 0 . 0 5 5
  • C 5 0 × 5 5 . 5
  • D 5 0 × 0 . 5 5
  • E 4 9 × 0 . 5 5

Q2:

Which of the following is closest to the result of 2 8 . 4 2 6 × 9 7 . 5 8 7 5 after rounding one of the two numbers to 10, 100, or 1000?

  • A284.26
  • B 28 426
  • C28.426
  • D 2 842.6
  • E 284 260

Q3:

Which of the following is the nearest to 5 . 4 7 8 × 1 0 8 0 upon rounding one of the two numbers to either 10, 100, or 1 0 0 0 ?

  • A547.8
  • B 54 780
  • C54.78
  • D 5 478
  • E 547 800