Okwezinombolo
Uchungechunge ngalunye lulandela umthetho — ukwengeza, ukuphindaphinda, ukushintshana, noma ukuhlanganisa amaphethini amabili. Thola umthetho, bese uthola inombolo engekho.
114, 107, 100, 93, 86, 79, ?
Khetha impendulo
Imibuzo yokuqala engu-10 yesigaba ngasinye mahhala.
Imibuzo emithathu exazululiwe yalolu hlobo. Zama ngamunye kuqala, bese ufunda impendulo nendlela yokuyithola.
Isibonelo 1
96, 90, 84, 78, 72, 66, ?
Impendulo elungile: D
Indlela yokuxazulula
Uchungechunge lushintsha ngezinyathelo ezilinganayo. Inombolo ngayinye iyinombolo engaphambi kwayo − 6: 96 − 6 = 90, 90 − 6 = 84, njalo njalo. Inombolo yokugcina eboniswayo ithi 66, ngakho impendulo ithi 66 − 6 = 60.
Isibonelo 2
72, 65, 58, 51, 44, 37, ?
Impendulo elungile: A
Indlela yokuxazulula
Uchungechunge lushintsha ngezinyathelo ezilinganayo. Inombolo ngayinye iyinombolo engaphambi kwayo − 7: 72 − 7 = 65, 65 − 7 = 58, njalo njalo. Inombolo yokugcina eboniswayo ithi 37, ngakho impendulo ithi 37 − 7 = 30.
Isibonelo 3
24, 35, 48, 63, 80, ?
Impendulo elungile: C
Indlela yokuxazulula
Inombolo ngayinye iyisikwele esiphelele − 1: 5²−1=24, 6²−1=35, 7²−1=48. Elandelayo ithi 10²−1 = 100−1 = 99.