Enter 2 numbers for Basic Math Operations:

<-- Number 1
<-- Number 2
       


Answer
Success!
15 + 12 = 27

↓Steps Explained:↓

Use addition:

15 + 12:

Line up our numbers vertically:

  15
+12

      
  15
+12
    7

Column 1: 5 + 2 = 7

      
  15
+12
  27

Column 2: 1 + 1 = 2

Final Answer

15 + 12 = 27
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Related Calculators:  Order of Operations  |  Base Conversion Operations  |  Partial Sum