Răspuns :
Aexandra+Corina=18
Alexandra=5×Corina
6×Corina=18
Corina are 3 mere.
Alexandra are atunci 15 mere
Alexandra=5×Corina
6×Corina=18
Corina are 3 mere.
Alexandra are atunci 15 mere
Notam cu a Alexandra
Notam cu b Corina
a = /__/ / __/
b= /__/ /___/ /__/ /__/ /__/
1p+ 5p= 6 parti
18÷6 = 3 mere are Corina
3×5 = 15 mere are Alexandra
Notam cu b Corina
a = /__/ / __/
b= /__/ /___/ /__/ /__/ /__/
1p+ 5p= 6 parti
18÷6 = 3 mere are Corina
3×5 = 15 mere are Alexandra