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प्रश्न
Which of the following statements are true and which are false?
The product of a positive integer and a negative integer is negative.
पर्याय
True
False
उत्तर
True
The product of a positive integer and a negative integer is negative.
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संबंधित प्रश्न
Write the proper sings >, < or = in the boxes below.
| (1) –4 `square` 5 | (2) 8 `square` –10 | (3) +9 `square` +9 | (4) –6 `square` 0 |
| (5) 7 `square` 4 | (6) 3 `square` 0 | (7) –7 `square` 7 | (8) –12 `square` 5 |
| (9) –2 `square` –8 | (10) –1 `square` –2 | (11) 6 `square` −3 | (12) –14 `square` –14 |
Indicate the following using '+' or '−' sign: Decrease of 9
Add: -1065 and -987
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.
Multiply: 32 by –21
Fill in the blanks:
(......) ÷ (−1) = 73
Write 'T' for true and 'F' for false for the following:
0 is neither positive nor negative.
The least integer lying between –10 and –15 is ______.
Which of the following shows the maximum rise in temperature?
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 | – |
