Adding and Subtracting Decimals Math Example 1

Follow the full solution, then compare it with the other examples linked below.

Example 1

easy
Calculate \(3.4 + 2.7\).

Solution

  1. 1
    Line up the decimal points:
  2. 2
    3.4
  3. 3
    + 2.7
  4. 4
    Tenths: \(4+7=11\), write 1, carry 1.
  5. 5
    Ones: \(3+2+1=6\).
  6. 6
    Result: 6.1.

Answer

6.1
Always align decimal points before adding. Then add as with whole numbers, keeping the decimal point in the same position.

About Adding and Subtracting Decimals

Adding and subtracting numbers with decimal points by aligning the decimal points vertically so that digits with the same place value line up.

Learn more about Adding and Subtracting Decimals →

More Adding and Subtracting Decimals Examples

Example 2 medium

A ribbon is 5.60 meters long. You cut off 2.35 meters. How much ribbon is left?

Example 3 medium

Calculate [formula].

Example 4 easy

Calculate (1.8 + 0.5).

Example 5 medium

A pitcher has 2.75 liters of juice. After pouring 1.40 liters, how much is left?

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