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Rabu, 11 Januari 2023

 I. Perform Mixed Arithmetic Operations

  How do we determine the result of: 18 + 15 – 7 = ...

Example:

  Answer:

Let's do the sequence operation from the left

  18 + 15 – 7 = (18 + 15) – 7

= 33 – 7

= 26

  So, 18 + 15 – 7 = 26

  Try to practice with the example below:

45 – 21 + 16 = ... .

  Answer:

45 – 21 + 16 = (45 – 21) + 16

= ... + 16 = ...

  So 45 – 21 + 16 = 40

J. Story Problems Related to Integers

The air temperature during the day is 24°C. Meanwhile, at night the temperature drops to 8°C. What is the temperature at night?

Answer:

An 8°C drop means the temperature drops by 8°C.

So, the problem above can be written 24°C – 8°C = 16°C.




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