Question

17+(-5)= -21+19= -8+(-48)= -15+(-18)=

Answer 1

Ответ:

1)12

2)40

3)48

4)3

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Answer 2

Ответ:

1)12

2)-2

3)-56

4)-33

вот

Answer 3

Let's calculate each expression step by step:

1. 17 + (-5) = 12 Adding a negative number is equivalent to subtracting that number, so 17 + (-5) is the same as 17 - 5, which equals 12.

2. -21 + 19 = -2 Adding a negative number is the same as subtracting that number, so -21 + 19 is the same as -21 - 19, which equals -2.

3. -8 + (-48) = -56 To add two negative numbers, we simply add their absolute values and assign the negative sign. So -8 + (-48) is the same as -(8 + 48), which equals -56.

4. -15 + (-18) = -33 Again, to add two negative numbers, we add their absolute values and assign the negative sign. So -15 + (-18) is the same as -(15 + 18), which equals -33.

Therefore, the results are: 17 + (-5) = 12 -21 + 19 = -2 -8 + (-48) = -56 -15 + (-18) = -33