Expanded form of decimals
This Grade 5 worksheet practices expanded form of decimals (Common Core 5.NBT.A.3a).
20 expanded form of decimals problems for Grade 5, with an answer key. Free printable PDF.
20 problems · answer key on the last page · each version has different numbers · Print from the browser
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On this sheet
- Write 73 + 1/10 + 2/100 + 1/1000 as a decimal. — answer: 73.121
- 0.955 = 9/10 + ▢ + 5/1000 — answer: 5/100
- Write 0.4 + 0.005 as a decimal. — answer: 0.405
How to teach it
- Each place is ten times the place to its right: tenths are ten times hundredths, ones are ten times tenths.
- To compare decimals, line up the decimal points and compare place by place from the left.
- To round, look at the digit one place to the right: 5 or more rounds up.
- To add or subtract decimals, line up the decimal points, then work as with whole numbers.
Questions teachers ask
- How many problems are on this worksheet?
- 20 on one page, with the answer key on the last page.
- What grade and standard is it for?
- Grade 5. Common Core: 5.NBT.A.3a.
- Can I print more than one version?
- Yes. Every version has different numbers and its own answer key. Use “Make another version” for a new one; the same version always prints the same.
- 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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