Q&A for How to Add Decimals

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  • Question
    how can I add decimals with pictures?
    Caleb Simcoe
    Community Answer
    Turn the decimals to fractions, then draw a fraction bar, then add the fractions together and turn the answer back to a decimal.
  • Question
    How do I subtract a decimal?
    ArDv005
    Community Answer
    Subtracting decimals is exactly like adding decimals. All you have to do is align (decimal points), fill-in (0's), perform (-), and subtract them as if they were whole numbers.
  • Question
    How do I subtract decimals with whole numbers, such as 28 - 13.5?
    Donagan
    Top Answerer
    Write the first number as 28.0. Make sure the decimal points line up vertically. Then subtract as usual, placing the decimal point of the answer immediately below the other decimal points.
  • Question
    Where do I put the decimal in the answer? Do I just bring it down?
    Donagan
    Top Answerer
    Yes. If you're adding vertically, place the numbers above each other so that the decimal points line up vertically, including the decimal point in the answer.
  • Question
    Where do I put the decimal if I'm adding 3 different rows of numbers and one of them is just a whole number ? (ie) 17+4.9+3.28 ?
    Jacqueline Schenk
    Community Answer
    When you are calculating a decimal number with a whole number, you have to place the whole number before the decimal, to make it simpler add the decimal numbers first 4.9+3.28 is 8.18 now add the whole number ie. 17+8.18, 17 plus 8 is 25 now just add the decimal and numbers before them, 25.18.
  • Question
    How do you add a decimal to a whole number?
    Community Answer
    First write the whole number, then a decimal point, then the decimal number. For example, 2 + 0.306 = 2.306.
  • Question
    How do you add a decimal number to a whole number?
    Community Answer
    Add some zeros after the decimal point of the whole number. That doesn’t change the value of that number. Then proceed as in any other adding problem. For example, 52 + 2.678 = 52.000 + 2.678 = 54.678.
  • Question
    What if the decimal number is a very big one?
    I_l1ke_gam3s
    Community Answer
    It doesn’t matter if the decimal number is big or small. The process remains the same.
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