Question

Find the missing number.
9 5 8 23
6 7 5 24
5 8 9 18
7 5 3 ?
Answer is 20. How?​

Answer 1

Answer:

(7×5) - (7+5+3) = 20

Step-by-step explanation:

(9×5) - (9+5+8) = 23

(6×7) - (6+7+5) = 24

(5×8) - (5+8+9) = 18