Question

2,8 + (2,8 + 0,8) + (2,8 + 0,8 - 1,1)=

Answer 1

2,8 + (2,8 + 0,8) + (2,8 + 0,8 - 1,1)=2,8 +2,8 + 0,8 + 2,8 + 0,8 - 1,1=3*2,8+2*0,8-1,1=8,9.

Ответ: 8,9.

Answer 2

2.8+(2.8+0.8)+(2.8+0.8-1.1)=2.8+3.6+2.5=8.9

Answer 3

Let's break this down step by step:

1. Start with the first addition: 2.8 + 2.8 = 5.6.
2. Next, add 0.8 to the result from step 1: 5.6 + 0.8 = 6.4.
3. Now, add 2.8 to the result from step 2: 6.4 + 2.8 = 9.2.
4. Finally, subtract 1.1 from the result from step 3: 9.2 - 1.1 = 8.1.

So, 2.8 + (2.8 + 0.8) + (2.8 + 0.8 - 1.1) equals 8.1.