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Notes
Closure Property of Whole Number:
| 7 + 8 = | 15, a whole number |
| 5 + 5 = | 10, a whole number |
| 7 × 8 = | 56, a whole number |
| 0 × 15 = | 0, a whole number |
- Adding two whole numbers always gives a whole number.
- Similarly, multiplying two whole numbers always gives a whole number
- Whole numbers are closed under addition and also under multiplication.
| 6 – 2 = | 4, a whole number |
| 7 – 8 = | - 1, not a whole number |
| 3 – 9 = | - 3, not a whole number |
| 12 ÷ 3 = | 4, a whole number |
| 5 ÷ 7 = | `5/7`, not a whole number |
| 6 ÷ 5 = | `6/5`, not a whole number |
- Subtraction and division of any two whole numbers may or may not give a whole number.
- Whole numbers are not closed under subtraction and division.
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