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Decimals worksheet generator

Print decimals three ways: column addition and subtraction with the decimal points lined up for you, place value questions on an underlined digit, and comparisons where the child writes <, > or = in a circle. Choose one or two decimal places and how many questions, then download a US Letter or A4 PDF with the answer key.

Choose the question style and the number of decimal places, preview the sheet, then download the PDF.

Quick presets
Decimal places

Every value is held as a whole number of tenths or hundredths, so the answers are exact rather than rounded — and in column mode the decimal points line up to a hundredth of a millimetre.

Advanced settings
Decimals worksheetName: Date: 1)39.4−39.32)71.5−13.33)90.0+6.44)0.3+7.85)40.7−10.26)0.9−0.97)52.5−49.08)35.3+49.09)87.5+9.610)46.8−46.611)37.0+4.812)31.0−1.8Page 1 of 2Created with Print Joey — printjoey.com
Page 1 of 2
Answer key1) 0.13) 96.45) 30.57) 3.59) 97.111) 41.82) 58.24) 8.16) 0.08) 84.310) 0.212) 29.2Page 2 of 2Created with Print Joey — printjoey.com
Page 2 of 2 — answer key

How it works

  1. Choose column addition and subtraction, place value, or comparing.
  2. Set one or two decimal places, the operations to include, and how many questions.
  3. Download the PDF, print it, or copy a share link that restores these settings.

Using these worksheets in teaching

Almost every persistent decimal error comes from one belief: that a decimal is two whole numbers with a dot between them. It produces 0.45 > 0.5, it produces 3.7 + 0.25 = 3.95 written as 3.95 by luck and 6.2 by method, and it is remarkably resistant to being told. What shifts it is place value said out loud — “four tenths”, not “four” — which is why the place value mode asks for the value rather than the digit, and why it is worth a week before column work starts. In column arithmetic the single highest-value habit is filling the ragged end with a zero: 3.7 written as 3.70 under 0.25 turns a decimal question into an ordinary one, and children who do it stop losing marks to alignment overnight. When comparing, insist on the same move — pad both numbers to the same length and the comparison becomes obvious rather than clever. The circle to write the symbol in is there because a child who has to place <, > or = somewhere definite cannot hedge.

Frequently asked questions

Are the decimal points really aligned?
Yes, to a hundredth of a millimetre, and it is checked by a test rather than by eye. Column arithmetic with decimals is a lesson about lining the points up, so a sheet whose own columns drift teaches the opposite of what it is for.
Why do the comparisons include things like 0.5 against 0.45?
Because that is the misconception the sheet exists to catch: a child who reads decimals as whole numbers with a dot in front decides 0.45 is bigger because 45 is bigger than 5. Roughly two comparison questions in three at two decimal places are of that shape, on purpose. At one decimal place the trap cannot occur — both numbers print at the same length — which is a reason to use two places once comparing starts.
What does place value mode ask?
It prints a number with one digit underlined and asks what that digit is worth: the answer is “4 tenths” or “7 hundredths”, not “4”. Naming the value rather than the digit is the whole point, and it is the step most often skipped.
Can subtraction give a negative answer?
No. The operands are ordered before they are printed, so every subtraction on the sheet is possible with the column method as taught. Decimals and negative numbers are two topics, and mixing them on one sheet makes a wrong answer ambiguous.
Is the arithmetic exact?
Yes, and by construction. Every value is held as a whole number of tenths or hundredths — the same trick the money generator uses with cents — so 0.1 + 0.2 is computed as 1 + 2 and printed as 0.3. No answer on the key is ever a rounding of a floating-point result.
Which paper sizes are supported?
US Letter and A4, laid out for each rather than scaled: the column widths and the number of questions per page are computed from the paper you choose.

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Last reviewed: July 2026. Worksheet content is generated by deterministic algorithms and covered by automated correctness tests — no AI-generated answers.