5th Grade Math (Grade 5) · Chapter 5 · Lesson 5.3 · Printable PDF

Estimating with Fractions Worksheet with Answer Key

6 problems on estimating with fractions: rounding fractions to 0, one half or 1, estimating sums and differences, puppy weight gain, finding mistakes in estimates, a paint jar, and yarn for hats. 3 pages, with a worked answer key.

6 problems3 pagesanswer key
Printable Estimating with fractions worksheet with answer key - 5th Grade Math (Grade 5) (Page 1 PDF preview)
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What's on the worksheet

  1. Round each fraction to 0, one half or 1:
    \dfrac{2}{7}\dfrac{3}{16}\dfrac{13}{14}\dfrac{5}{12}\dfrac{7}{9}
  2. Estimate each sum or difference after rounding each fraction first:
    \dfrac{7}{8} + \dfrac{5}{9}\dfrac{1}{12} + \dfrac{9}{11}\dfrac{4}{7} + \dfrac{6}{13}\dfrac{14}{15} - \dfrac{3}{7}\dfrac{5}{6} - \dfrac{1}{10}
  3. Round the puppy's weights to the nearest half pound and estimate how much it gained.
  4. Explain the mistake in each student's estimate and write a correct estimate.
  5. Answer questions about the paint jar without finding the exact sums.
  6. Word problem: estimate the yarn total for three hats and decide if 10 yards is enough.

Teach it first

The free lesson teaches it with worked examples and practice problems.

Estimating with fractions: the lesson ›

More Chapter 5 worksheets: Adding and subtracting fractions with unlike denominators