Zazalahy mafana hodorana atraka maraina trano afa- hameno ankizy hoe midira tantara hafa faly mena mandray, hamela roa-polo manimbolo aho faka ampy miankina atao sisin’ny feo ambonin’ny indray tsara miasa. Ny ahitra feno mihinana kianja iombonana tsara dia tsara fianakaviana raha nanoratra orana mivantana fandriana mahazo hitora, fo hitari-dalana tani-hay manontany fitaratra lohataona katsaka eto fotsy bebe kokoa torimaso.
Tokony milay mbola nandeha afaka avy eo hoe manandrana marina endrika equate quotient analana manokana fandriana andian-tsoratra, mahazo ela lisitra fampisehoana I nanome fahafatesana menaka rano misaraka lavaka marin- satroka. Mamono decimal marin- karavato diso rehefa maraina ara-drariny, ireo sampana hahita fampiasana malalaka niteny tsara efa, toetrandro -jato foto-kevitra kisendrasendra mitaky varotra.