5 1 91-12= 253-11- 3. 4 - 32 = 35= 4.5 -33- 8 - 5.4-5= 6.89 13 = + 112. 13 4. 38 +5% 11 = 5.12.2023​

Ответ:

Step 1: Read the problem carefully and understand the operations involved.

Step 2: Perform the operations in the correct order.

Step 3: Check your answers for accuracy.

Here's the breakdown of the problems and their solutions:

Problem 1:

5 1 91-12=

Solving:

5 1 = 51

91-12=79

51+79=130

Answer: 130

Problem 2:

253-11- 3. 4 - 32 =

Solving:

253-11=242

3.4 = 3.40

242-3.40=238.60

238.60-32=206.60

Answer: 206.60

Problem 3:

8 - 5.4-5=

Solving:

5.4 = 5.40

8-5.40=2.60

2.60-5=-2.40

Answer: -2.40

Problem 4:

6.89 13 =

Solving:

6.89 = 6.89

6.89 x 13 = 89.57

Answer: 89.57

Problem 5:

4. 38 +5% 11

Solving:

4.38 = 4.38

5% of 11 = (5/100) x 11 = 0.55

4.38 + 0.55 = 4.93

Answer: 4.93

Пошаговое объяснение: