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Rabu, 11 Januari 2023

Understanding Integers, Read This

Have you ever had ice? How does it feel, cold isn't it? Ice comes from chilled water. For example, if water whose temperature is 20°C is cooled, its temperature will drop to 19°C, 18°C, 17°C, 16°C, and so on. When the temperature is 0°C, water will freeze into ice. If ice is cooled further, its temperature will drop again, for example, 1°C below zero, 2°C below zero, 3°C below zero, and so on.

How to write numbers under zero? Numbers below zero are written with a negative symbol (–).

1°C below zero is written –1°C

2°C below zero is written –2°C

3°C below zero is written –3°C

  Numbers consisting of negative numbers, zero, and positive numbers are called integers. So, integers are: ..., –4, –3, –2, –1, 0, 1, 2, 3, 4, ….

  In everyday life there are many things related to integers. For example, the height of a place 2,500 m above sea level. All places on earth, the height is measured from sea level. So:

  • Sea level is 0 m high.

  • Place above sea level is positive (+).

  • Place below sea level is negative (–).




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