2_sinf_matematika_135_dars_yaxlit sonlarni ko'paytirish

sinf: 2 chorak: 4 dars: matematika mavzu: yaxlit sonlarni ko'paytirish 135-dars dars shiori matematika fanlar ichra shoh, uning sirlaridan bo’lamiz ogoh 40•5=200 (kg) 200•2=600 (kg) 400 kg navro’z bayramida navro’z bayramida 3•(8•5)=3•40=120 9•(5•4)=9•20=180 3•(50•2)=3•100=300 7•(50•2)=7•100=700 6•(5•4)=6•20=120 3•(5•8)=3•40=120 1-asalari qutisidan - 9 kg 2-asalari qutisidan - ?, 2 marta ko'p hamma asal solindi - 3 kgdan banka kerak bo'lgan-? ta yechish: 1)9•2=18 (kg) 2)9+18=27 (kg) 3)27:3=9 (ta) javob: 9 ta banka 4,18,31,45,9,7,13,27,41,19,3,16,24,32,8,41 15 ta sondan keyin 41, 6,13,15,5,40,9,18,21,31,33,42,9,15,20,36 14 sondan keyin 36 4,8,16,50,51,15,13,5,9,10,7,32,41,50 13 ta sondan keyin 50 9,17,40,38,8,12,20,7,18,1,3,5,9 12 ta sondan keyin 9 soni bo’yaladi maydon eni — 50 m bo'yi —?,...

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