Răspuns:
Ex.4
a)305.487-18.979=286.508
b)258.474+104.685=363.159
c)456.678+203.762=660.440
Ex.9
a)122456-48569=73887
b)74376+21734=96110
a)a+b
73887+96110=169997
b)a+b+365482
73887+96110+365482=535479
c)b-a
96110-73887=22223
d)(a+23223)-b
(73887+23223)-96110=
97110-96110=1000
Sper ca te-am ajutat.coroana