Question

35-8:2,7*2+19,81-14:2,25+20:2,

Answer 1

8:2=4
35-4= 31

7*2=14
14+19=33

14:2=7
81-7=74

20:2=10
25+10=35

Answer 2

~52,66
Это приблизительно, а не приблизительно 52,6618...

Answer 3

Let's solve the expression step by step:

1. 35 - 8 ÷ 2: First, perform the division and then the subtraction. 35 - (8 ÷ 2) = 35 - 4 = 31.

2. 7 * 2 + 19: Perform the multiplication and then the addition. 7 * 2 = 14, and then add 19: 14 + 19 = 33.

3. 81 - 14 ÷ 2.25: First, perform the division, and then the subtraction. 14 ÷ 2.25 = 6.222... (rounded to three decimal places) 81 - 6.222... = 74.777... (rounded to three decimal places)

4. 20 ÷ 2: Perform the division. 20 ÷ 2 = 10.

Now, we have three results: 31, 33, and 74.777 (rounded).

Now, combine the results with the + and - operators:

31 + 33 - 74.777 = -10.777 (rounded to three decimal places).

So, the final result of the expression is approximately -10.777.