Question

If 12+21=9 and 11+22=8 and 41+21=15 and 32+15=30 then 23+54=?

Answer 1

Answer:

45

Step-by-step explanation:

12+21=9

1+2,. 1+2

3*3=9

1+1 ,. 2+2

2*4=8

4+1,. 2+1

5*3=15

3+2,. 1+5.

5*6=30

2+3,. 5+4

5*9=45