Kodi mungaphunzire bwanji kuwerengera mwamsanga?

Chidziwitso chomwe chimapezeka m'maphunziro a algebra ndi geometry mu moyo anthu amagwiritsa ntchito kawirikawiri. Maluso ofunikira komanso oyenerera okhudzana ndi masamu ndikutha kuwerengera mwamsanga m'malingaliro, choncho ndi bwino kudziwa m'mene mungaphunzire. Mumoyo wamba, izi zimakuthandizani kuti muwerenge mwamsanga kusintha, kuwerengera nthawi, ndi zina.

Ndi bwino kukhala ndi luso kuyambira ubwana, pamene ubongo umaphunzira zambiri mofulumira. Pali njira zambiri zothandiza zomwe anthu ambiri amagwiritsa ntchito.

Kodi mungaphunzire bwanji kufulumira m'malingaliro?

Kuti mukwaniritse zotsatira zabwino, nkofunika kuti muzichita maphunziro nthawi zonse. Pambuyo pokwaniritsa zolinga zina, ziyenera kulemetsa ntchitoyi. Chofunikira kwambiri ndi luso la munthu, ndiko kuti, kuthekera kusunga zinthu zingapo kukumbukira ndikuyika chidwi. Kupambana kwakukulu kungapezeke ndi anthu okhala ndi maganizo a masamu. Kuti mwamsanga mudziwe kuwerenga, muyenera kudziwa tebulo lowonjezera.

Njira zodziwika kwambiri zowerengera:

1. Tidzatha kudziwa momwe mungagwiritsire ntchito chiwerengero cha nambala ziwiri mu malingaliro, ngati mukufuna kuchulukitsa ndi 11. Kuti mumvetse njirayi, tiyeni tiwone chitsanzo chimodzi: 13 pitirizani ndi 11. Vuto ndilo pakati pa nambala 1 ndi 3 muyenera kuika ndalama zawo, ndizo 4. Zotsatira zake, zikutanthauza kuti 13x11 = 143. Pamene chiwerengero cha ma chiwerengero chimapereka chiwerengero cha nambala ziwiri, mwachitsanzo, mukachulukitsa 69 ndi 69, ndiye 6 + 9 = 15, ndiye kuti mumangowonjezera chiwerengero chachiwiri, ndiko kuti, 5, ndi kuwonjezera 1 ku chiwerengero choyamba cha kuchulukitsa. Chifukwa cha zimenezi, mumapeza 69x11 = 759. Palinso njira yowonjezera nambala 11. Poyambira, yochulukitsani ndi 10, ndiyeno yonjezerani nambala yoyamba. Mwachitsanzo, 14x11 = 14x10 + 14 = 154.
2. Njira yina yowerengera mozama mawerengedwe ambiri mu malingaliro akugwira ntchito yochulukitsa ndi 5. Lamulo ili ndilofunika kwa nambala iliyonse yomwe iyenera kugawidwa ndi 2 pachiyambi.Ngati zotsatira zake ndi nambala, muyenera kupereka zero kumapeto. Mwachitsanzo, kuti mudziwe kuchuluka kwa 504 kudzachulukitsidwa ndi 5. Kuti muchite izi, 504/2 = 252 ndipo amati ndikumapeto kwa 0. Zotsatira zake, timapeza 504x5 = 2520. Ngati, pogawa chiwerengero, simukupeza nambala, muyenera kuchotsa comma. Mwachitsanzo, kuti muzindikire kangapo 173 kuchulukitsidwa ndi 5, mukufunikira 173/2 = 86.5, ndipo pambuyo pake muthetseni komma, ndipo 173x5 = 865.
3. Timaphunzira momwe tingagwiritsire ntchito mwamsanga chiwerengero cha nambala ziwiri, ndi kuwonjezera. Choyamba muyenera kuwonjezera makumi, ndiyeno, mayunitsi. Kuti mupeze zotsatira zomaliza, muyenera kuwonjezera zotsatira ziwiri zoyambirira. Mwachitsanzo, tidziwa kuchuluka kwa 13 + 78. Choyamba: 10 + 70 = 80, ndi chachiwiri: 3 + 8 = 11. Chotsatira chomaliza chidzakhala motere: 80 + 11 = 91. Njira iyi ingagwiritsidwe ntchito pamene wina ayenera kuchotsa wina kuchokera ku nambala imodzi.

Nkhani ina yofunika kwambiri ndiyo kuwerengera msanga m'maganizo. Kachiwiri, kuti mumvetse bwino, ganizirani chitsanzo cha momwe mungapezere 15% mwa chiwerengero. Choyamba, dziwani 10%, ndiko kuti, kugawa ndi 10 ndi kuwonjezera theka la zotsatira -5%. Pezani 15% mwa 460: kupeza 10%, gawani nambala 10, tipeze 46. Chinthu chotsatira ndicho kupeza theka: 46/2 = 23. Zotsatira zake, 46 + 23 = 69, zomwe ndi 15% za 460.

Palinso njira ina, momwe mungayese chidwi. Mwachitsanzo, ngati mukufuna kudziwa kuchuluka kwa 6% ya 400. Poyambira, nkofunika kupeza 6% mwa 100 ndipo izi zidzakhala 6. Kuti mupeze 6% mwa 400, mukufunikira 6x4 = 24.

Ngati mukufuna kupeza 6% mwa 50, muyenera kugwiritsa ntchito algorithm: 6% ya 100 ndi 6, ndipo 50, iyi ndi theka, yomwe ndi 6/2 = 3. Zotsatira zake, zimakhala kuti 6 peresenti ya 50 ndi 3.

Ngati nambala yomwe mukufuna kupeza peresenti yosakwana 100, muyenera kusuntha comma kumanzere. Mwachitsanzo, kupeza 6% mwa 35. Choyamba, pezani 6% ya 350 ndipo mudzakhala 21. Mtengo wa 6% kwa 35, ndi 2.1.