Urgent!!!!! Am nevoie ... dau coroana si 20 p ex. 8 ( ultimul)

Răspuns:
a13,4+14,31=27,71
27,71÷100=0,2771
b169,4-98,87=70,53
70,53÷100=0,7053
c3,7×0=0
0÷100=0
d105÷12=8,75