4-sinf matem shkalalar
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mavzu: shkalalar 109-110- betlar mustaqil topshiriqni tekshirish(108-b). 6-topshiriq. bo‘yi 16 cm, eni 12 cm bo‘lgan to‘g‘ri to‘rtburchak-ning hamma tomonlari 5 cm dan qisqartirildi. hosil bo‘lgan to‘g‘ri to‘rtburchakning perimetrini toping. 16 cm 12 cm yechish: 1) 16 – 5 = 11 (cm) – bo‘yi 2) 12 – 5 = 7 (cm) – eni 3) p = 2 (a + b) = 2 (11 + 7) = 36 (cm) javob: to‘g‘ri to‘rtburchakning perimetri 36 cm. 7 cm 11 cm p = 36 cm 7-topshiriq. tadbirkor mart oyida 26 567 kg xomashyo sotib oldi. aprel oyida mart oyidagiga nisbatan 334 kg kam xom-ashyo sotib oldi. tadbirkor shu ikki oyda qancha xomashyo sotib olgan? natijani tonnalarda ifodalang. mart oyida – 26 567 kg aprel …
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