(63-23)*2-(45+45):30-(72+28):10

Question 1

Задача Задача №2393170

А

Аноним

02 декабря 2024 11:57 · публичный вопрос

А

Аноним 02 декабря 2024 11:57

(63-23)*2-(45+45):30-(72+28):10

Answer

Let's break down the expression step by step:

Calculate \(63 - 23\): \[ 63 - 23 = 40 \]
Multiply the result by 2: \[ 40 * 2 = 80 \]
Calculate \(45 + 45\): \[ 45 + 45 = 90 \]
Divide that result by 30: \[ 90 : 30 = 3 \]
Calculate \(72 + 28\): \[ 72 + 28 = 100 \]
Divide that result by 10: \[ 100 : 10 = 10 \]
Now, let's combine everything into the final expression: \[ 80 - 3 - 10 \]
Calculate \(80 - 3\): \[ 80 - 3 = 77 \]
Then subtract 10: \[ 77 - 10 = 67 \]

So, the final result is: \[ \boxed{67} \]

Question 2

(63-23)*2-(45+45):30-(72+28):10

Answer

Let's break down the expression step by step: 1. Calculate \(63 - 23\): \[ 63 - 23 = 40 \] 2. Multiply the result by 2: \[ 40 * 2 = 80 \] 3. Calculate \(45 + 45\): \[ 45 + 45 = 90 \] 4. Divide that result by 30: \[ 90 : 30 = 3 \] 5. Calculate \(72 + 28\): \[ 72 + 28 = 100 \] 6. Divide that result by 10: \[ 100 : 10 = 10 \] 7. Now, let's combine everything into the final expression: \[ 80 - 3 - 10 \] 8. Calculate \(80 - 3\): \[ 80 - 3 = 77 \] 9. Then subtract 10: \[ 77 - 10 = 67 \] So, the final result is: \[ \boxed{67} \]