Question

please answer it..fast​

Answer 1

Answer:

40

Step-by-step explanation:

1+4-5

2+5+5-12

3+6+12-21

8+11+21-40answer.

Answer 2

Answer:

40

Step-by-step explanation:

4 + 1 = 5

5 + 2 + 5 (answer obtained in previous addition) = 12

3 + 6 + 12 = 21

Now, 11 + 8 + 21 = 40

Hope, it's helpful