Rounding off Positive & Negative Numbers to Whole or Decimal Places, Adding & Subtracting Whole Numbers (Sum & Difference), Online Calculators

Three online calculators available: [1] Rounding off numbers [2] Adding numbers [3] Subtracting Numbers

These calculators are free and are listed below. Click on any link to access the calculator of your choice or to see the operations with number listed under each calculator's section.

• • [1] Calculator 1: Rounding off Positive and Negative Numbers to Whole or Decimal Places, Online Calculator, Mathematical Explanations

  • The latest 3 operations with rounded off numbers:

    Round off 0.9916 to the nearest hundredth (2 decimal places)	Feb 26 21:08 UTC (GMT)
    Round off 2.85 to the	Feb 26 15:49 UTC (GMT)
    Round off 2.857 to the	Feb 26 15:47 UTC (GMT)
    All the operations with the numbers rounded off by users...

  • [2] Calculator 2: Adding natural numbers calculator: calculate the sum and learn how to add multiple digit numbers

  • The latest 3 operations with added numbers:

    12 + 33 + 44 + 88 + 99 = ?	Feb 27 16:48 UTC (GMT)
    2 + 5 + 4 + 6 + 1 + 5 + 2 + 3 + 1 = ?	Feb 24 09:25 UTC (GMT)
    450 + 356 + 1,885 + 82 = ?	Jan 23 15:41 UTC (GMT)
    All the operations with the numbers added by users...

  • [3] Calculator 3: Subtracting integer numbers calculator: calculate the difference and learn how to subtract multiple digit numbers

  • The latest 3 operations with subtracted numbers:

    134 - 104 = ?	Feb 19 21:39 UTC (GMT)
    63 - 48 = ?	Feb 17 10:42 UTC (GMT)
    180 - 118 = ?	Feb 09 11:46 UTC (GMT)
    All the operations with the numbers subtracted by users...

Online Articles How To / Steps and Explanations:

• • [1] How to Round Off Numbers to Whole or Decimal Places, Theory, Explanations, Examples. Special Cases

  • [2] How to add natural numbers: calculate the sum and learn to add multiple digit numbers by using the column addition method

  • [3] How to subtract numbers: calculate the difference and learn to subtract multiple digits numbers by using the column subtracting method