Question

Решите с раскрытеем скобок : А) 397 – (25+197) Б) 10005 + (-12005+876) В) 9054 - (32 – 2046) Г) -812 – ( - 112 – 524)

Answer 1

А) 1)397-25=354

2)354+197=551

Б) 1)10005+12005=22010

2)22010+876=22866

В) 1)9054-32=9022

2)9022-2046=6976

Г) 1)812-112=700

2)700-524=176

Пошаговое объяснение:

я не знаю вроде правильно решил

Answer 2

Ответ:

А) 175

Б) -1154

В) 11068

Г) 1448

Answer 3

A) 397 – (25 + 197)

To solve this expression, we need to follow the order of operations, which is often remembered using the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

In this case, we have parentheses, so we need to start by simplifying the expression inside the parentheses:

25 + 197 = 222

Now we can substitute the simplified expression back into the original expression:

397 - 222

Finally, we can perform the subtraction:

397 - 222 = 175

Therefore, the value of the expression 397 – (25 + 197) is 175.

B) 10005 + (-12005 + 876)

Following the order of operations, we start by simplifying the expression inside the parentheses:

-12005 + 876 = -11129

Now we can substitute the simplified expression back into the original expression:

10005 + (-11129)

Finally, we can perform the addition:

10005 + (-11129) = -1124

Therefore, the value of the expression 10005 + (-12005 + 876) is -1124.

C) 9054 - (32 – 2046)

Again, we follow the order of operations and start by simplifying the expression inside the parentheses:

32 - 2046 = -2014

Now we can substitute the simplified expression back into the original expression:

9054 - (-2014)

To subtract a negative number, we can rewrite it as addition:

9054 + 2014

Finally, we can perform the addition:

9054 + 2014 = 11068

Therefore, the value of the expression 9054 - (32 - 2046) is 11068.

D) -812 - (- 112 - 524)

Following the order of operations, we start by simplifying the expression inside the parentheses:

-112 - 524 = -636

Now we can substitute the simplified expression back into the original expression:

-812 - (-636)

To subtract a negative number, we can rewrite it as addition:

-812 + 636

Finally, we can perform the addition:

-812 + 636 = -176

Therefore, the value of the expression -812 - (-112 - 524) is -176.

I hope this helps! Let me know if you have any further questions.