Răspuns :
1 ---
2---+18
3---+18+13
REZOLVARE
1 numar
(154-18-18-13):3=35
2 numar
35+18=53
3 numar
53+13=66
2---+18
3---+18+13
REZOLVARE
1 numar
(154-18-18-13):3=35
2 numar
35+18=53
3 numar
53+13=66
1n______
2n______ +18 }154
3n______+18+13
18+18+13=49
154-49=105
105:3=35--pr nr
35+18=53-2nr
53+13=66-3nr
2n______ +18 }154
3n______+18+13
18+18+13=49
154-49=105
105:3=35--pr nr
35+18=53-2nr
53+13=66-3nr