matematika nazorat 3-chorak 2-sinf 1

2-sinf nazorat ishi matematika. 1-qator. 1.masala bitta mazaika yasash uchun 127 ta yashil, undan 36 ta ko’p qizil va 119 ta sariq detal kerak bo’ldi. mazaikaga jami nechta detal ishlatilgan? y: 127+36=163 127+163+119=409 ta 2. hisoblang. · 76cm+3dm5cm-2dm7cm=84 cm · 3. taqqoslang. · x+487 = x-487 · y-664 > y-700 · · 4. tomoni 4 cm va 5 cm bo’lgan to’g’ri to’rtburchak chizing. uning yuzini e da hisoblang. · j: 80 e · 2-qator. 1. masala. bitta mazaika yasash uchun 122 ta yashil, undan 39ta ko’p qizil va 129 ta sariq detal kerak bo’ldi. mazaikaga jami nechta detal ishlatilgan? y: 122+39=161 122+161+129=412 ta 2. hisoblang. 62cm-4dm7cm+1dm6cm=31 cm 3. taqqoslang. x+985 > x-985 y-298 > y-300 · 4. tomoni 3 cm …

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