Mental arithmetic

Lolu hlelo lokusebenza luvumela ukuthuthukisa amakhono okubalwa kwengqondo kalula futhi ngokushesha.

Uhlelo lwethu lokusebenza lulungele izingane ezenza izinyathelo zazo zokuqala ekufundeni izibalo, kanye nakubantu abadala abafuna ukuqeqesha ubuchopho babo.

Gcina ubuchopho bakho bufanelana nokuzivocavoca kwezibalo ezijwayelekile.
Ingqondo yakho izosebenza ngokushesha nangendlela efanelekile.

Izihloko:
1. Isengezo nokukhipha ngaphakathi kwe-10
2. Okwenezela nokususa ngaphakathi kwe-20
3. Amaketanga ezibonelo ngaphakathi kwe-10
4. Isengezo nokukhipha amadijithi amabili nedijithi elilodwa
5. Isengezo nokukhipha izinombolo, esinye sazo siyindilinga
6. Isengezo nokukhipha ngaphakathi kwe-100
7. Ukuphindaphinda nokuhlukanisa ngenombolo eyodwa
8. Ukuphindaphindwa nokuhlukaniswa phakathi kwe-100
9. Isengezo nokukhipha ngaphakathi kwe-1000 (izinombolo eziyindilinga)
10. Amaketanga wokungezelwa nokususa ngaphakathi kwe-100
11. Ukuphindaphinda nokuhlukanisa phakathi kwezinkulungwane eziyi-1000 (izinombolo eziyindilinga)
12. Amaketanga ekuphindaphindeni nasekuhlukaniseni ngaphakathi kwe-100
13. Amaketanga ahlanganisiwe ngaphakathi kwe-100
14. Amaketanga anamabakaki
15. Inombolo engemihle
16. Amaketanga anezinombolo ezingezinhle
17. Ukuqhathanisa izingxenyana
18. Okwenezela nokususa izingxenyana
19. Ukuphindaphindwa nokuhlukaniswa kwezingxenyana