Question

2+ 2*5-7+7890-670:20​

Answer 1

Ответ:

2+2*5-7+7890-670/20=2+10-7+7890-33,5=7861,5

Удачи! Отметь как лучший, пожалуйста.

Answer 2

Ответ:

Пошаговое объяснение: упростим

2*5=10

670:20=33.5

Подставим:

2+10-7+7890-33.5=7861.5

Answer 3

To calculate the expression "2 + 2 * 5 - 7 + 7890 - 670 ÷ 20," we need to follow the order of operations, which is often represented by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

Let's break down the calculation step by step:

1. First, we perform the multiplication: 2 * 5 = 10.

2. Then, we perform the division: 670 ÷ 20 = 33.5.

3. Now, we substitute the multiplication and division results back into the expression: 2 + 10 - 7 + 7890 - 33.5.

4. Next, we perform the addition and subtraction from left to right: 2 + 10 = 12, 12 - 7 = 5, 5 + 7890 = 7895, 7895 - 33.5 = 7861.5.

Therefore, the result of the expression "2 + 2 * 5 - 7 + 7890 - 670 ÷ 20" is 7861.5.