Number maths puzzle | Mathematics number puzzle

 

Answer : 540

: Solutions :

● 14 + 19 = 33 (insert 1 in the middle) => 313

● 25 + 13 = 38 (insert 2 in the middle) => 328

● 7 + 18 = 25 (insert 3 in the middle) => 235

● 10 + 40 = 50 (insert 4 in the middle) => 540