Răspuns :
a + b = 27
a) /......................../
b) /......................../.........................../
27 : 3 = 9( reprezinta o parte / un segment )
a= 1 x 9 = 9
b= 2 x 9 = 18
a + b = 27
9 + 18=27
a) /......................../
b) /......................../.........................../
27 : 3 = 9( reprezinta o parte / un segment )
a= 1 x 9 = 9
b= 2 x 9 = 18
a + b = 27
9 + 18=27