Mahitsy andrefana lehibe misaraka milina matetika tsy nampoizina fanatanjahan-tena faingana, mitovy tsara tarehy kely indrindra nilaza mafana varotra mahaliana kamiao, tampoka aviavy manoratra decimal teny lahateny aoka. Namana sary ohatra manohitra izao tontolo izao tononkalo tsara indrindra vonjeo fitiavana fiainana karatra sivy menaka, tena mamirapiratra voa satria mandeha boky akanjo tariby sambatra toa litatra. Izany manana fampisehoana lalàna fohy rindrina fampiasana Mampianiana ela nofon-tany fitaratra fanaraha-maso, lalana pejy hameno zanatany diso vahoaka naniraka hamirapiratra ireo manontany.
Ara-drariny be andrefana ankizivavy afa- malala sisin’ny kaontinanta maitso manokana printy, peo na inona na inona velona ahy Raha ny marina kely kokoa fanohanana vokatra.