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प्रश्न
For the following statement write (T) for true and (F) for false:
The sum of a negative integer and a positive integer is always a negative integer.
पर्याय
True
False
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उत्तर
False
It can be negative or positive.
For example: -2 + 3 = 1 gives a positive integer, but -5 + 2 = -3 gives a negative integer.
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संबंधित प्रश्न
In a magic square each row, column and diagonal have the same sum. Check which of the following is a magic square.
1)
| 5 | -1 | -4 |
| -5 | -2 | 7 |
| 0 | 3 | -3 |
2)
| 1 | -10 | 0 |
| -4 | -3 | -2 |
| -6 | 4 | -7 |
Add: 5 + (–6)
Find the additive inverse of: 2054
Multiply: –12 by –9
Simplify: (–27) × (–16) + (–27) × (–14)
The predecessor of −16 is
In the pair given below, find the larger integer.
Fill in the blanks.
The predecessor of −200 is ...... .
The sum of two negative integers is a positive integer.
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 | – |
