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by how much is -20 less than 20​

Sagot :

Answer:

40

Step-by-step explanation:

20 - 40 = -20

Using zero as a reference point 20 is 20 units above zero and -20 is 20 units below zero.


20 + 20 = 40

-20 and 20 are 40 units away from each other.


-20 is 40 less than 20