Respuesta :

givemeanswer61

Answer:

-2.7

Step-by-step explanation:

to add a decimal with a negative u must sub react them and If the negative is bigger than the positive than the negative over takes the positive and the awnser is negative.

-1.3


You would need to start at -2.1 then go right 0.8 spaces and you would get -1.3 which is also the same as 2.1-0.8 because adding integers with different signs is the same as subtracting the two numbers. To determine the sign, the sign with the greatest number would be the sign. Since -2.1 is greater, your sign would be negative.

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