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प्रश्न
If we denote the height of a place above sea level by a positive integer and depth below the sea level by a negative integer, write the following using integers with the appropriate signs:
Sea level
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उत्तर
Given, the height of a place above sea level is denoted by positive (+) sign and depth below the sea level is denoted by negative (–) sign.
Sea level = 0
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संबंधित प्रश्न
Add: -73 and -687
Is the following statement true or false?
The difference of two integers is always an integer.
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Write (T) for true and (F) for false for the following statement:
(−16) ÷ (−4) = −4
4 more than −5 is
(−6) + 4 − (−3) = ?
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Simplify: (−24) × (68) + (−24) × 32
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An atom changes to a charged particle called ion if it loses or gains electrons. The charge on an ion is the charge on electrons plus charge on protons. Now, write the missing information in the table given below:
| Name of Ion | Proton Charge | Electron Charge | Ion Charge |
| Hydroxide ion | +9 | – | –1 |
| Sodium ion | +11 | – | +1 |
| Aluminium ion | +13 | –10 | – |
| Oxide ion | +8 | –10 | – |
