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:

-5 + 4.5 + (-4.5) = - 5 + 4,5 - 4,5 = - 5

-0.5 +3.5 +(-4.5) = -  0,5 + 3,5 - 4,5 = 3,5 - 5 = - 1,5

-5.5 +3.5 + (-3,5) = - 5,5 + 3,5 - 3,5 = - 5,5

-5+3+(-4.5) = - 5 + 3 - 4,5 = - 9,5 + 3 = - 6,5

Пошаговое объяснение:

+ - = -

- + = -

- - = +

+ + = +

Answer 2

Ответ:

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

2) -5.5 +3.5 + (-3,5)=-5,5

3) -0.5 +3.5 +(-4.5)=0,5

4)-5+3+(-4.5)=-6,5

Answer 3

It looks like you've provided a series of mathematical expressions involving addition and subtraction of numbers. Let's go through each one step by step:

1. $381.1 - 5 + 4.5 + (-4.5)$ = $381.1 - 5 + 4.5 - 4.5$ = $376.1$

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

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

4. $-5 + 3 + (-4.5)$ = $-5 + 3 - 4.5$ = $-6.5$

So, the results of the given expressions are:

1. $376.1$
2. $-1.5$
3. $-5.5$
4. $-6.5$