Question

1) 603:9+84:6×25 2) (329+127):8-105:3 3)(900-156):6+31×4 Три задания

Answer 1

Пошаговое объяснение:

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Answer 2

1. To solve the expression 603:9+84:6×25, we need to follow the order of operations, which is often remembered using the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction). In this case, we first perform the division and then the multiplication, followed by addition.

First, let's perform the division: 603 ÷ 9 = 67

Now, let's perform the multiplication: 84 ÷ 6 × 25 = 14 × 25 = 350

Finally, let's perform the addition: 67 + 350 = 417

Therefore, the value of the expression 603:9+84:6×25 is 417.

2. To solve the expression (329+127):8-105:3, we again need to follow the order of operations.

First, let's perform the addition within parentheses: 329 + 127 = 456

Now, let's perform the division and subtraction: 456 ÷ 8 - 105 ÷ 3

456 ÷ 8 = 57 105 ÷ 3 = 35

Substituting the values, we have: 57 - 35 = 22

Therefore, the value of the expression (329+127):8-105:3 is 22.

3. To solve the expression (900-156):6+31×4, we follow the order of operations.

First, let's perform the subtraction within parentheses: 900 - 156 = 744

Now, let's perform the division and addition: 744 ÷ 6 + 31 × 4

744 ÷ 6 = 124 31 × 4 = 124

Substituting the values, we have: 124 + 124 = 248

Therefore, the value of the expression (900-156):6+31×4 is 248.