books were all good quality with difficult sums. Much better than present day English books though I am not sure whether these were his genuine or got from another source and changed . What ever a good effort at that time . It was very difficult to find these books even in 1990s . There was a major problem as units of the sums were not IS and old British /American system. So it is worthwhile if some person revise these books to IS units with necessary changes and reprint as there will be a good market for such good quality books.
එහෙම එක එක්කෙනාට ඕන විදිහට වෙනස් කරන්න බෑ ...
කතෘ අයිතිය දීල තියෙන්නෙ දරුවන්ට... දූලට නම් එච්චර ගණන් බෑ ... පුතාට දීල තියෙන ඒව නම් හදවන්න පුලුවන් වෙයි .... එයා MATHS කරපු නිසා
