Okwezinombolo

Ukuzijwayeza: Imibuzo yobudala

Iminyaka ishintsha ngenani elifanayo kuwo wonke umuntu. Guqula imisho ibe yi-equation elula.

0 kwengu-70 okuqediwe

Khetha impendulo elungile

Isamba seminyaka kaFiona neka-Iris singu-46. UFiona mdala kuno-Iris ngeminyaka engu-6. UFiona uneminyaka emingaki?

Khetha impendulo

Imibuzo yokuqala engu-10 yesigaba ngasinye mahhala.

Amathiphu: Imibuzo yobudala

Sebenzisa okungaziwa okukodwa kweminyaka yomncane kunabo bonke bese uveza eminye ngakho.
Umehluko phakathi kweminyaka yabantu ababili awulokothi ushintshe.
Hlola impendulo yakho uyiqhathanise nayo yonke imisho esembuzweni.

Izibonelo ezixazululiwe: Imibuzo yobudala

Imibuzo emithathu exazululiwe yalolu hlobo. Zama ngamunye kuqala, bese ufunda impendulo nendlela yokuyithola.

Isibonelo 1

Khetha impendulo elungile

Isamba seminyaka kaLiam nekaKate singu-107. ULiam mdala kunoKate ngeminyaka engu-21. ULiam uneminyaka emingaki?

Impendulo elungile: C

Indlela yokuxazulula

Susa umehluko esambeni ukuze ususe igebe: 107 − 21 = 86. Lokhu kushiya iminyaka yomncane iphindwe kabili, ngakho iminyaka kaKate: 86 ÷ 2 = 43. Iminyaka kaLiam: 43 + 21 = 64.

Isibonelo 2

Khetha impendulo elungile

Isilinganiso seminyaka yabangane abangu-4 singu-15. Iminyaka yabangu-3 kubo yile: 11, 13, 19. Umngane osele uneminyaka emingaki?

Impendulo elungile: B

Indlela yokuxazulula

Isamba seminyaka = 4 × 15 = 60. Isamba seminyaka yabangane abangu-3 esaziwayo singu-43. Umngane osele uneminyaka: 60 − 43 = 17.

Isibonelo 3

Khetha impendulo elungile

Isamba seminyaka kaFiona nekaKate singu-51. UFiona mdala kunoKate ngeminyaka engu-7. UFiona uneminyaka emingaki?

Impendulo elungile: A

Indlela yokuxazulula

Susa umehluko esambeni ukuze ususe igebe: 51 − 7 = 44. Lokhu kushiya iminyaka yomncane iphindwe kabili, ngakho iminyaka kaKate: 44 ÷ 2 = 22. Iminyaka kaFiona: 22 + 7 = 29.