1334 Functia de gradul 1 Graficul Ecuatia dreptei Coliniaritatea necoliniaritatea a 3 puncte Clasa 8
1/2 Lesson 840 Decomposition of numbers in base 10 Fraction problems using the figurative method ...
Lectia 836 Ecuatia unei drepte Coliniaritate 3 puncte Arie triunghi Dist. de la pct. la o dr. Cls 11