Question

5)12-312+3;26 +226 -2.6)​

Answer 1

Ответ:

12-3=9

12+3=15

26+2=28

26-2=24

Answer 2

Ответ:

1.) 9

2.) 15

3.) 28

4.) 24

Answer 3

It looks like you've provided a series of arithmetic expressions. Let's solve them one by one:

1. 12 - 312 + 3 = -297
2. 26 + 226 - 2.6 = 249.4

If you meant to include parentheses in the second expression, please provide the correct format, and I'd be happy to help you solve it.