Question

381.1) -5 +4.5+ (-4.5);3) -0.5 +3.5 + (-4.5);2) -5.5 +3.5 + (-3,5);4) -5 +3 + (-4.5).​

Answer 1

Ответ:

381.

1)-5+4,5+(-4,5)= -5

2)-5,5+3,5+(-3,5)= -5,5

3)-0,5+3,5+(-4,5)= -1,5

4)-5+3+(-4,5)= -6,5

Answer 2

It looks like you've provided a series of arithmetic expressions with addition and subtraction. I'll calculate the results for each expression:

1. -5 + 4.5 + (-4.5) = -5 + 4.5 - 4.5 = -5 + 0 = -5

2. -0.5 + 3.5 + (-4.5) = -0.5 + 3.5 - 4.5 = 3 - 4.5 = -1.5

3. -5.5 + 3.5 + (-3.5) = -5.5 + 3.5 - 3.5 = -5.5 + 0 = -5.5

4. -5 + 3 + (-4.5) = -5 + 3 - 4.5 = -2.5

So, the results of the given expressions are:

1. -5
2. -1.5
3. -5.5
4. -2.5