Вопрос:

Calculate the result of the following arithmetic expressions:

Смотреть решения всех заданий с листа

Ответ:

Calculation 1:

The expression is +5×11+1+15×7.

Following the order of operations (multiplication before addition):

  1. 5 × 11 = 55
  2. 15 × 7 = 105
  3. 55 + 1 + 105 = 161

Result: 161

Calculation 2:

The expression is 7-60:5+3):8+11.

First, resolve the expression inside the parentheses:

  1. 60 : 5 = 12
  2. 12 + 3 = 15

Now, substitute this back into the expression:

  1. 7 - 15 : 8 + 11

Next, perform the division:

  1. 15 : 8 = 1.875

Finally, perform subtraction and addition from left to right:

  1. 7 - 1.875 = 5.125
  2. 5.125 + 11 = 16.125

Result: 16.125

Calculation 3:

The expression is 9×15+126:7-75:15-36:3.

Perform multiplications and divisions from left to right:

  1. 9 × 15 = 135
  2. 126 : 7 = 18
  3. 75 : 15 = 5
  4. 36 : 3 = 12

Now, substitute these values back and perform additions and subtractions from left to right:

  1. 135 + 18 - 5 - 12
  2. 153 - 5 - 12
  3. 148 - 12
  4. 136

Result: 136

Calculation 4:

The expression is (16×4+2×12):11+17×8.

First, solve the operations inside the parentheses:

  1. 16 × 4 = 64
  2. 2 × 12 = 24
  3. 64 + 24 = 88

Now, substitute this back into the expression:

  1. 88 : 11 + 17 × 8

Next, perform the division and multiplication from left to right:

  1. 88 : 11 = 8
  2. 17 × 8 = 136

Finally, perform the addition:

  1. 8 + 136 = 144

Result: 144

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