### [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 11,318 to the nearest hundred thousand (6 whole places)***Apr 18 09:48 UTC (GMT)***Round off 1,773.6 to the nearest one (1 whole place)***Apr 18 09:48 UTC (GMT)***Round off 205.3 to the nearest hundred thousandth (5 decimal places)***Apr 18 09:47 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:

**983 + 9,306 + 2,077 = ?***Apr 18 09:47 UTC (GMT)***462 + 417 = ?***Apr 18 09:47 UTC (GMT)***128 + 157 = ?***Apr 18 09:47 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:

**164 - 131 = ?***Apr 18 09:48 UTC (GMT)***1,025 + 2,049 - 608 - 430 = ?***Apr 18 09:47 UTC (GMT)***7,131 - 5,658 = ?***Apr 18 09:47 UTC (GMT)***All the operations with the numbers subtracted by users...**

### [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