Question

5. Определи порядок выполнения действий и вычисли. 876 ; 2 – 672 :4+ (1000 – 703)(315•3 – 179 · 4) – 65 + 768​

Answer 1

Ответ:

876 ; 2 – 672 :4+ (1000 – 703)=567

1) 1000-703=297

2) 876/2=438

3) 672/4=168

4) 438-168=270

5) 270+297=567

(315•3 – 179 · 4) – 65 + 768​=932

1) 315*3=945

2) 179*4=716

3) 945-716=229

4) 229-65=164

5) 164+768=932

Answer 2

To determine the order of operations and evaluate the expression, let's break it down step by step:

1. Order of Operations: - The order of operations, also known as PEMDAS, stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). It is a set of rules that determines the sequence in which mathematical operations should be performed.

2. Evaluating the Expression: Now let's evaluate the given expression: 876;2 – 672:4 (1000 – 703)(315•3 – 179 · 4) – 65 + 768.

Step 1: Evaluate within the parentheses: - (1000 – 703) = 297 - (315•3 – 179 · 4) = 315 • 3 - 179 • 4 = 945 - 716 = 229

Step 2: Evaluate the division: - 672:4 = 168

Step 3: Perform the multiplication: - 315 • 3 = 945 - 179 • 4 = 716

Step 4: Perform the subtraction: - (1000 – 703)(315•3 – 179 · 4) = 297 • 229 = 67913

Step 5: Perform the remaining operations from left to right: - 876;2 – 672:4 = 438 – 168 = 270 - 67913 – 65 = 67848 - 67848 + 768 = 68616

Therefore, the value of the expression 876;2 – 672:4 (1000 – 703)(315•3 – 179 · 4) – 65 + 768 is 68616.

Please let me know if you need any further clarification or assistance!