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प्रश्न
Represent the following numbers as integers with appropriate signs.
A deposit of rupees two hundred.
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उत्तर
+ ₹200
संबंधित प्रश्न
Verify a − (−b) = a + b for the following values of a and b. a = 21, b = 18
Given below are the temperatures in some cities. Write to them using the proper signs.
| Place | Shimla | Leh | Delhi | Nagpur |
| Temperature | 7°C below 0° | 12°C below 0° | 22°C above 0° | 31°C above 0° |
Indicate the following using '+' or '−' sign: 2 km above sea level
Add: -73 and -687
Add: 178 and -69
A car travelled 60 km to the north of Patna and then 90 km to the south from there. How far from Patna was the car finally?
Fill in the blanks:
80 ÷ (......) = −5
Simplify: (−147) ÷ (−21)
Write 'T' for true and 'F' for false for the following:
−|−15| = −15.
An atom consists of charged particles called electrons and protons. Each proton has a charge of +1 and each electron has a charge of –1. Remember number of electrons is equal to number of protons, while answering these questions:
- What is the charge on an atom?
- What will be the charge on an atom if it loses an electron?
- What will be the charge on an atom if it gains an electron?
