Boshlashich sinflarda matematika u

Masalan, ogzaki

276+432=(200+400)+(70+30)+(6+2)=600+100+8=708

yozma +276 432

SHunday vaziyatga etkazish kerakki, arifmetik amallarni bajarish avtomatizmga (yodsa) aylansin.

2. 
   “Unlik mavzusida ” arifmetik amallarni urganish
   

Mavzuni urganishda ukituvchi oldida turgan asosiy maksadlar kuyidagilardan iborat:

1. 
   k,ushish va ayirish amallarining mazmuni bilan tanishtirish:
   
2. 
   xisoblash usullaridan ongli foydapanishni ta’minlash;
   

a) “sonni kismlari buyicha (bittalab yoki gruppalab) kushish va ayirish” usuli;

b) yigindiningurni almashtirish xossasidan foydapanib kushish usuli;

v) sonlarni ayirishda kushish amalidan ya’ni noma’lum komponentni topishdan foydalanish.

3.