1) 2324-1045=1279 piersici
2324+1045=3369
3369-2089=1280 meri
2)
4184-1272=2912 lalele
2912-1050=862 narcise
3)
4567-1874=2693
3600-1874=1726
5000-1874=3126
2719-1874=845
4)
2345+4171=6516
6156-2398=3758
5263+3917=9180
9180-2398=6782
4287+1813=6100
6100-2398=3702
1793+2657=4440
4440-2398=1042