Potso ea Lipalo tsa Bohlokoa
Pendahuluan
Lipalo tse bohlokoa ke mohopolo oa motheo lipalo le mahlale o sebelisoang ho fumana ho nepahala ha litekanyo le liphetho tsa lipalo. Ho utloisisa lipalo tse bohlokoa ho bohlokoa litekong tsa mahlale, boenjiniere, le lits'ebetsong tse ling tse ngata moo ho hlokahalang litekanyo le lipalo tse nepahetseng. Sengoloa sena se tla tšohla tlhaloso ea lipalo tse bohlokoa, melao e sebelisoang ho li khetholla, 'me se fane ka mehlala e' maloa ea mathata ho thusa ho sebelisa mohopolo ona.
Tlhaloso ea Lipalo tsa Bohlokoa
Lipalo tse bohlokoa ke linomoro tse ka har'a nomoro tse fanang ka tlhahisoleseling e molemo mabapi le ho nepahala le ho nepahala ha tekanyo. Lipalo tse bohlokoa li kenyelletsa linomoro tsohle tse tsejoang hammoho le nomoro e le 'ngoe e hakantsoeng ea ho qetela. Khopolo ena e re thusa ho fetisa ho nepahala ha tekanyo kapa lipalo.
Melao ea Bohlokoa ea Lipalo
1. Linomoro tse seng tsa Lefela
– Dinomoro tsohle tse seng tsa lefela di bohlokwa.
– Mohlala: 123 e na le lipalo tse tharo tsa bohlokoa.
2. Li-Zero Pakeng tsa Linomoro tse seng tsa Lefela
– Linoto tsohle tse pakeng tsa linomoro tse seng tsa lefela ke lipalo tsa bohlokoa.
– Mohlala: 1002 e na le lipalo tse 'ne tsa bohlokoa.
3. Lefela ka Pele ho Dinomoro tse seng Lefela
– Li-zero tse ka pel'a linomoro tse seng tsa lefela ha li nkoe e le lipalo tsa bohlokoa.
– Mohlala: 0,0025 e na le lipalo tse peli tsa bohlokoa.
4. Linoto tse ka morao ho linomoro tse seng tsa lefela
– Li-zero tse ka morao ho linomoro tse seng tsa lefela nomorong ea desimali ke lipalo tsa bohlokoa.
– Mohlala: 25,00 e na le lipalo tse 'ne tsa bohlokoa.
– Dinomoro tse salang morao ka dinomoro tse seng tsa lefela ka dinomoro tse se nang didesimale di ka nkuwa di le bohlokwa kapa tsa se ke tsa nkuwa di le bohlokwa ho latela moelelo.
5. Lipalo ho Mongolo oa Saense
– Linomoro tsohle tse karolong ea desimali ea mongolo oa saense ke lipalo tsa bohlokoa.
– Mohlala: \( 1,23 \makgetlo a 10^3 \) e na le dipalo tse tharo tsa bohlokwa.
Lipotso tsa Mohlala oa Lipalo tsa Bohlokoa
Mohlala oa 1: Ho Fumana Lipalo tsa Bohlokoa
Potso:
Fumana palo ea lipalo tsa bohlokoa linomorong tse latelang:
1. 0,0456
2. 123,45
3. 100
4. 7,800
Tharollo:
1. 0,0456 e na le lipalo tse tharo tsa bohlokoa (4, 5, 6).
2. 123,45 e na le lipalo tse hlano tsa bohlokoa (1, 2, 3, 4, 5).
3. 100 e na le palo e le 'ngoe ea bohlokoa (1), ntle le haeba e boleloa e le 1,00 × 10², joale e na le lipalo tse tharo tsa bohlokoa.
4. 7,800 e na le lipalo tse 'ne tsa bohlokoa (7, 8, 0, 0).
Mohlala oa 2: Ho eketsa le ho ntša ka lipalo tsa bohlokoa
Potso:
Bala sephetho sa 12,11 + 0,0347 – 1,2 u ela hloko lipalo-palo tsa bohlokoa.
Tharollo:
1. Eketsa le ho ntsha dinomoro:
\[ 12,11 + 0,0347 – 1,2 = 10,9447 \]
2. Fumana palo ea lipalo tse bohlokoa ho latela nomoro e nang le desimali e nyane ka ho fetisisa (sebaka se le seng sa desimali ho 1,2):
\[ 10,9447 \hoo e ka bang 10,9 \]
Kahoo, sephetho ke 10,9.
Mohlala oa 3: Katiso le Karohano ka Lipalo tsa Bohlokoa
Potso:
Bala sephetho sa 4,56 × 0,0032 / 1,23 u ela hloko lipalo tsa bohlokoa.
Tharollo:
1. Atisa le ho arola dinomoro:
\[ 4,56 \makgetlo 0,0032 / 1,23 = 0,01186992 \]
2. Fumana palo ea lipalo tsa bohlokoa ho latela palo e nang le palo e nyane ka ho fetisisa ea lipalo tsa bohlokoa (lipalo tse 2 tsa bohlokoa ho 0,0032):
\[ 0,01186992 \hoo e ka bang 0,012 \]
Kahoo, sephetho ke 0,012.
Mohlala oa 4: Lipalo tsa Bohlokoa Tekanyong
Potso:
Rula e lekanya bolelele ba ntho e le 15,4 cm le bophara e le 7,05 cm. Bala sebaka sa ntho, u nahane ka lipalo tsa bohlokoa.
Tharollo:
1. Bala sebaka sa ntho:
\[ 15,4 \, \mongolo{cm} \makgetlo a 7,05 \, \mongolo{cm} = 108,57 \, \mongolo{cm}^2 \]
2. Fumana palo ea lipalo tsa bohlokoa ho latela palo e nang le palo e nyane ka ho fetisisa ea lipalo tsa bohlokoa (lipalo tse 3 tsa bohlokoa ho 15,4):
\[ 108,57 \hoo e ka bang 109 \, \mongolo{cm}^2 \]
Kahoo, sebaka sa ntho ke 109 cm².
Mohlala oa 5: Lipalo tsa Bohlokoa Mongolong oa Saense
Potso:
Fetola nomoro ea 0,000456 ho ea ho notation ea saense u ela hloko lipalo tsa bohlokoa.
Tharollo:
1. Fetola linomoro ho ea ho notation ea saense:
\[ 0,000456 = 4,56 \makgetlo a 10^{-4} \]
2. Nomoro ea 4,56 e na le lipalo tse tharo tsa bohlokoa.
Kahoo, mongolo wa saense wa 0,000456 ke \( 4,56 \makgetlo a 10^{-4} \) ka dipalo tse tharo tsa bohlokwa.
Qetello
Lipalo tse bohlokoa ke mohopolo oa motheo saenseng le boenjiniere o re thusang ho fumana ho nepahala le ho nepahala ha litekanyo. Ka ho utloisisa melao ea lipalo tse bohlokoa le mokhoa oa ho li sebelisa lipalo, re ka netefatsa hore liphetho tsa rona li bonts'a boemo bo loketseng ba ho nepahala. Mehlaleng ea mathata a kaholimo, re bone mokhoa oa ho fumana lipalo tse bohlokoa le mokhoa oa ho li sebelisa ts'ebetsong ea lipalo joalo ka ho eketsa, ho ntša, ho atisa le ho arola.
Ho utloisisa lipalo tsa bohlokoa ho boetse ho thusa puisanong ea saense, kaha ho lumella bafuputsi le baenjiniere ho hlahisa lintlha tsa bona ka ho hlaka le ka nepo. Lefatšeng le itšetlehileng haholo ka lintlha le litekanyo tse nepahetseng, tsebo ea ho sebelisa lipalo tsa bohlokoa ke letlotlo la bohlokoa le re thusang ho qoba liphoso le ho etsa liqeto tse betere tse thehiloeng ho lintlha tse nepahetseng.
