Question

there are total numbers of addition formula for big friends​

Answer 1

Step-by-step explanation:

(+ 1) Add One + 1 = - 9 + 10 Big Friend of '1' is '9'

(+ 2) Add Two + 2 = - 8 + 10 Big Friend of '2' is '8'

(+ 3) Add Three + 3 = - 7 + 10 Big Friend of '3' is '7'

(+ 4) Add Four + 4 = - 6 + 10 Big Friend of '4' is '6'

Answer 2

1-9

2-8

3-7

5-5

6-4

7-3

9-1