2-sinf matematika

tayyorladi: navoiy viloyati uchquduq tuman 18-maktab ning boshlang‘ich sinf o‘qituvchisi shamsiyeva marg‘uba shavqiddinovna 2-sinf matematika o‘tilganlarni mustahkamlash uchun mashqlar (201-202-bet) to‘g‘ri javobni toping 20 ning choragini toping. 10 4 5 1 2 3 to‘g‘ri javobni toping. 30 ning yarmini toping 10 6 15 1 2 3 to‘g‘ri javobni toping. 72 ning 9 dan bir qismini toping 24 8 9 1 2 3 shunday son qo‘yingki, tengliklar to ‘g‘ri bo‘lsin. 14-misol 250+40=290 530-30=500 680-80=600 460+40=500 900+50=950 370-70=300 masalani qisqa shart tuzib yeching. 15-masala berilishi 1-shahar va 2-shahar orasi – 120 km 2-shahar va 3-shahar orasi – ? , 30 km ortiq 1-shahar va 3-shahar orasi– ? km yechish: 1) 120+30=150 km 2) 120+150=270 km javob: 1-shahar va 3-shahar orasidagi masofa 270 …

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