Question

ПОМОГИТЕ ПЖ ОЧЕНЬ НАДО Спираючись на переставний та сполучний закони, виконайте додавання зручним способом-2 +3+ (-8) + (-7) +4= ​

Answer 1

Ответ:

Пошаговое объяснение:-2 +3+ (-8) + (-7) +4= -2-8-7+3+4=-17+7=-10

Answer 2

Addition Using Commutative and Associative Laws

To solve the given addition problem using the commutative and associative laws, we can rearrange the numbers to make the addition more convenient.

First, let's rearrange the numbers using the commutative law, which states that the order of the numbers in addition does not affect the sum.

Commutative Law: The commutative law of addition states that changing the order of the numbers being added does not change the sum.

Now, let's rearrange the numbers: - 2 + 3 + (-8) + (-7) + 4

Next, we can use the associative law, which states that the way in which numbers are grouped in addition does not affect the sum.

Associative Law: The associative law of addition states that changing the grouping of the numbers being added does not change the sum.

Now, let's group the numbers in a way that makes the addition more convenient: - (2 + 3) + ((-8) + (-7)) + 4

Now, we can perform the addition in a more convenient manner.

Calculation

- (2 + 3) = 5 - ((-8) + (-7)) = -15

Now, the expression becomes: - 5 + (-15) + 4

Finally, we can add the numbers together: - 5 + (-15) + 4 = -6

Answer: The sum of 2, 3, -8, -7, and 4 using the commutative and associative laws is -6.