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Free · Grade 4 to Grade 6 · Answer keys

Decimal worksheets

Free decimal worksheets with answer keys: decimal place value, comparing and ordering, rounding, the four operations with decimals, word problems, and fractions as decimals.

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Grade 4

Grade 5

  • Expanded form of decimals

    20 expanded form of decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Decimal place value

    24 decimal place value problems for Grade 5, with an answer key. Free printable PDF.

  • Rounding decimals

    24 rounding decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Comparing decimals

    18 comparing decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Ordering decimals

    16 ordering decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Adding decimals

    24 adding decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Subtracting decimals

    24 subtracting decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Multiplying decimals

    24 multiplying decimals problems for Grade 5, with an answer key. Free printable PDF.

  • Decimal word problems

    16 decimal word problems problems for Grade 5, with an answer key. Free printable PDF.

Grade 6

  • Dividing decimals

    24 dividing decimals problems for Grade 6, with an answer key. Free printable PDF.

How to teach it

  1. Each place is ten times the place to its right: tenths are ten times hundredths, ones are ten times tenths.
  2. To compare decimals, line up the decimal points and compare place by place from the left.
  3. To round, look at the digit one place to the right: 5 or more rounds up.
  4. To add or subtract decimals, line up the decimal points, then work as with whole numbers.

Questions teachers ask

When do students learn decimals?
In the Common Core, tenths and hundredths start in Grade 4 (4.NF.C.6), place value to thousandths, rounding and all four operations with decimals are Grade 5 (5.NBT.A.3, 5.NBT.A.4, 5.NBT.B.7), and fluency with decimal operations is Grade 6 (6.NS.B.3).
What is expanded form?
A number written as the sum of the value of each digit: 4,072 is 4,000 + 70 + 2, and 3.25 is 3 + 0.2 + 0.05.

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