Ulwazi olufunyenweyo kwizifundo ze-algebra kunye nejometri ebomini abantu basebenzise kakhulu. Isakhono esibaluleke kakhulu nesimfuneko esifana neemathematika yinto yokukwazi ukubala ngokukhawuleza engqondweni, ngoko kuyafaneleka ukuba ufunde indlela yokufunda ngayo. Ubomi obuqhelekileyo, oku kukuvumela ukuba ubale ngokukhawuleza utshintsho, kubala ixesha, njl.
Kungcono ukuphuhlisa ubuchule ukususela ebuntwaneni, xa ingqondo ifunda ulwazi ngokukhawuleza. Kukho iindlela ezininzi ezinokusetyenziswa ngabantu abaninzi.
Indlela yokufunda ukubala ngokukhawuleza engqondweni?
Ukufikelela kwiziphumo ezilungileyo, kubalulekile ukuqhuba uqeqesho rhoqo. Emva kokufezekisa iinjongo ezithile, kubalulekile ukuba kube nzima ukwenza umsebenzi. Kubaluleke kakhulu ubuchule bomntu, oko kukuthi, ukukwazi ukugcina izinto ezininzi kwimemori nokugxila ingqalelo. Impumelelo enkulu ingaphunyezwa ngabantu abaneengqondo zemathematika. Ukukhawuleza ukufunda ukubala, kufuneka ufunde itafile yokuphindaphinda kakuhle.
Izindlela ezithandwa kakhulu zokubala:
- Siza kuqonda indlela yokukhawuleza ukubala amanani adijithi amabini engqondweni, ukuba ufuna ukuphindaphinda ngo-11. Ukuqonda ubuchule, makhe sibone umzekelo omnye: 13 phinda ngo-11. Ingxaki yukuthi phakathi kwamanani 1 no-3 kufuneka ufake isamba sawo, ngu-4. Ngenxa yoko, kuvela ukuba 13x11 = 143. Xa isibalo samadijithi sinika inombolo yeenombini ezimbini, umzekelo, ukuba ukwanda kwe 69 nge 69, ngu-6 + 9 = = 15, ke kufuneka ufune ukufaka ifowuni yesibini, okuyi-5, kwaye udibanise 1 kwidijithi yokuqala yomphindaphindi. Ngenxa yoko, ufumana i-69x11 = 759. Kukho enye indlela yokwandisa inombolo ngo-11. Ukuqala, phinda ngo-10, uze udibanise inombolo yokuqala. Umzekelo, 14x11 = 14x10 + 14 = 154.
- Enye indlela yokukhawuleza ukubala amaninzi amaninzi engqondweni isebenza ngokuphindaphinda ngo-5. Lo mgaqo ufanelwe nayiphi na inombolo efuna ukwahlula i-2 ekuqaleni. Ukuba isiphumo siyinani, kufuneka ubeke i-zero ekupheleni. Umzekelo, ukufumanisa ukuba i-504 iya kwandiswa yi-5. Ukukwenza oku, 504/2 = 252 kwaye ichazwe ekupheleni kwe-0. Ngenxa yoko, sithola i-504x5 = 2520. Ukuba, xa ukwahlula inombolo, awufumani i-integer, kufuneka nje ususe i-comma. Umzekelo, ukufumana ukuba amaxesha angama-173 aphindwa nga-5, udinga i-173/2 = 86.5, kwaye emva koko ususe kuphela i-comma, kwaye i-173x5 = 865 ivela.
- Sifunda indlela yokukhawuleza ukubala engqondweni yamanani amabini, ngokudibanisa. Okokuqala kufuneka udibanise amashumi, kwaye ke, iiyunithi. Ukuze uthole umphumo wokugqibela, kufuneka ungeze iziphumo ezimbini zokuqala. Ngokomzekelo, siza kuqikelela ukuba ingaba 13 + 78. Isenzo sokuqala: 10 + 70 = 80, kunye nesibini: 3 + 8 = 11. Isiphumo sokugqibela siya kuba ngolu hlobo: 80 + 11 = 91. Le ndlela ingasetyenziswa xa umntu kufuneka asuse omnye kumbolo enye.
Esinye isihloko esiphuthumayo kukukhawuleza ukubala iipesenti engqondweni. Kwakhona, ukuqonda okungcono, cinga ngomzekelo wendlela yokufumana i-15% yenani. Okokuqala, misela i-10%, oko kukuthi, ukwahlula ngo-10 kwaye wongeze isiqingatha sesiphumo -5%. Fumana i-15% ye-460:
Kukho enye indlela, indlela yokubala inzala. Umzekelo, ukuba ufuna ukucacisa ubuninzi be-6% engama-400. Okokuqala, kuyimfuneko ukufumana u-6% we-100 kwaye oku kuya kuba 6. Ukufumana u-6% wama-400, udinga u-6x4 = 24.
Ukuba ufuna ukufumana u-6% wama-50, kufuneka usebenzise le algorithm: i-6% ye-100 ingu-6, kwaye i-50, esi siqingatha, esingu-6/2 = 3. Ngenxa yoko, kuvela ukuba i-6% ye-50 ngu-3.
Ukuba inani ofuna ukufumana ipesenti ngaphantsi kwe-100, kufuneka uhambise i-comma ngakwesobunxele. Umzekelo, ukufumana u-6% wama-35. Okokuqala, fumana u-6% wama-350 kwaye kuya kuba ngu-21. Inani le-6% ye-35, ngu-2.1.