Question

6•9-48-30:5= (15+21):4+71-(35-17)= 7•8-39+5•9-27=

Answer 1

6•9-48-30:5 = 54 - 48 - 6 = 0

36 : 4 + 71 - 18 = 9 + 71 - 18 = 80 - 18 = 62

56 - 39 + 45 - 27 = - 55

Answer 2

первое это 0

второй это 62

третий это 35

Answer 3

Let's break down each expression step by step:

1. 6•9 - 48 - 30 ÷ 5 First, perform multiplication and division from left to right: 6•9 = 54 30 ÷ 5 = 6 Now, the expression becomes: 54 - 48 - 6 Next, perform subtraction from left to right: 54 - 48 = 6 6 - 6 = 0

So, the result of the first expression is 0.

2. (15 + 21) ÷ 4 + 71 - (35 - 17) First, perform the operations inside the parentheses: 15 + 21 = 36 35 - 17 = 18 Now, the expression becomes: 36 ÷ 4 + 71 - 18 Perform division first: 36 ÷ 4 = 9 Now, the expression becomes: 9 + 71 - 18 Perform addition from left to right: 9 + 71 = 80 80 - 18 = 62

So, the result of the second expression is 62.

3. 7•8 - 39 + 5•9 - 27 Perform multiplication from left to right: 7•8 = 56 5•9 = 45 Now, the expression becomes: 56 - 39 + 45 - 27 Perform subtraction from left to right: 56 - 39 = 17 17 + 45 = 62 62 - 27 = 35

So, the result of the third expression is 35.

Final results:

1. 6•9 - 48 - 30 ÷ 5 = 0
2. (15 + 21) ÷ 4 + 71 - (35 - 17) = 62
3. 7•8 - 39 + 5•9 - 27 = 35