Helitaanka Labajibbaarane - 1
Shabaqkan waxaa lagu sawiray casaan laba afargeesle ah oo 1 iyo 1 iyo 2 laba jibbaaran oo leh dhinacyo toosan iyo kuwo toosan.
CAQABADDA
Ka hel tirada labajibbaaran ee cabbirro kasta leh oo leh dhinacyo toosan iyo kuwo toosan oo ku jira shabaggan.
SHARAXAADA
Ku ciyaar shabagyo ka sii weyn. Ma heli kartaa hab nidaamsan oo aad ku tirin karto dhammaan labajibbaaranayaasha? Sidee jawaabtaadu isu beddeshaa, haddii ay haba yaraatee, haddii shabagga dhibcaha uu yahay leydi aan ahayn labajibbaaran?
Notes
CAQABADDA
Labajibbaaranayaasha suurtagalka ah waxay leeyihiin dherer dhinac ah laga bilaabo 1 ilaa 4.
Cabbir kasta oo labajibbaaran, ka fikir geeska bidix ee sare booska bilowga. Waxaad ku soo saari kartaa dhammaan labajibbaarannada cabbirkan shabagga adigoo u wareejinaya labajibbaaran bilowga ah. Waxaad haysataa ikhtiyaarka ah inaad u rarto midig ama hoos tirada boosaska harsan. Kuwani waa xulashooyin madax-bannaan, markaa waxaad heleysaa labajibbaaran oo cabirkaas ah.
Tusaale ahaan, bal qiyaas inaad tirinayso 1 labajibbaaran oo ku jira shabaggan 4-ta ah. Labajibbaaran oo 1-ta ah oo ku yaal geeska bidix ee sare waxaa loo wareejin karaa 1 ama 1 dhanka midig iyo 1 ama 1 hoos. Markaa waxaa jira 3 boos oo suurtagal ah oo si toosan loo hagaajin karo (iyadoo la tirinayo booska asalka ah) iyo 3 boos oo suurtagal ah oo si toosan loo hagaajin karo. Sidaas darteed waxaa jira 3 x 3 oo ka mid ah 1-1 labajibbaaran.
Dhibaatada shabagga 4-4 ee asalka ah, tani waxay bixinaysaa tirada soo socota:
- 1 saddex jibbaaran: 3 x 3 = 9
- 2 saddex jibbaaran: 2 x 2 = 4
- 3 afargeesle: 1 x 1 = 1.
Waxaa jira wadarta guud ee 3 x 3 + 2 x 2 + 1 x 1 = 9 + 4 + 1 = 14 afargeesle oo suurtagal ah.
SHARAXAADA
Shabaq kasta oo laba jibbaaran, wadarta tirada labajibbaaran waxay noqon doontaa wadarta lambarrada labajibbaaran ee ka yar cabbirka shabaq. Tusaale ahaan, shabaq 7 by 7 ah wuxuu yeelan doonaa 36 + 25 + 16 + 9 + 4 + 1 = 91 labajibbaaran.
Shabaqyada leydiga ah way fududahay in la tiriyo. Labada cabbir ee yar ee leydiga ah ayaa xaddidi doona cabbirka ugu badan ee labajibbaaran ee suurtogalka ah. Tiri si la mid ah kiiska shabaqyada labajibbaaran. Halkii aan ka samayn lahayn kiiska guud, aan samayno hal tusaale oo tusaale ah.
Ka soo qaad inaad tirinayso labajibbaaranayaasha shabag 5 by 7 ah. Maadaama ay jiraan 5 saf oo keliya, labajibbaaran ma ka weynaan karo 4 by 4.
- 1 saddex jibbaaran: 4 x 6 = 24
- 2 saddex jibbaaran: 3 x 5 = 15
- 3 saddex jibbaaran: 2 x 4 = 8
- 4 saddex jibbaaran: 1 x 3 = 3
Wadarta tirada labajibbaaran waa 24 + 15 + 8 + 3 = 50.