Question

1) (13-8) + (261-15) - (14-7)+(3+81); 10 10 2) (623-4)+(14-11-(39-112) - (1+2).

Answer 1

Ответ:

1

1)13-8=5

2)261-15=246

3)14-7=7

4)3+81=84

5)5+246=251

6)251-7=244

7)244+84=328

Answer 2

Let's solve the given expressions:

1. (13 - 8) + (261 - 15) - (14 - 7) + (3 + 81)

First, let's simplify the expressions within parentheses:

(13 - 8) + (261 - 15) - (14 - 7) + (3 + 81) = 5 + 246 - 7 + 84

Next, let's perform the additions and subtractions from left to right:

5 + 246 - 7 + 84 = 251 - 7 + 84 = 244 + 84 = 328

Therefore, the result of the expression is 328.

2. (623 - 4) + (14 - 11 - (39 - 112)) - (1 + 2)

Again, let's simplify the expressions within parentheses:

(623 - 4) + (14 - 11 - (39 - 112)) - (1 + 2) = 619 + (14 - 11 - (-73)) - 3

Next, let's simplify the expression within the innermost parentheses:

619 + (14 - 11 - (-73)) - 3 = 619 + (14 - 11 + 73) - 3 = 619 + (3 + 73) - 3 = 619 + 76 - 3

Now, perform the additions and subtractions from left to right:

619 + 76 - 3 = 695 - 3 = 692

Therefore, the result of the expression is 692.