5_sinf_matematika_86_to'g'ri_va_noto'g'ri_kasrlar_3+

to’g’ri va noto’g’ri kasrlar 3-sinf @dars_ishlanma_yangi darsning oltin qoidalari intizom hamkorlik faollik qisqa va lo’nda gapirish o’zaro hurmat hozir darsimiz i k a t a m e t a m uyga vazifani tekshirish 6-masala 2cm 5mm ? 1 cm 5mm ? 1cm 5mm=15mm d=2x15=30mm=3cm 2) 2cm 5mm=25 mm d=2x25mm=50mm=5cm 7-masala 1 soatda 90 km 1 soatda 80 km 1304 km 2 soatdan keyin ?km uyga vazifani tekshirish 2 soatda 180 km 2 soatda 160 km 1304 km 2 soatdan keyin 964 km yechish: 1-usul 1)90x2=180 km(1-mashinaning 2 soatda yurgan masofasi) 2)80x2=160 km km(2-mashinaning 2 soatda yurgan masofasi) 3)180+160=340km (2 ta mashina bir-biriga 2soatda qancha yaqinlashishi) 4)1304-340=964 km (2soatdan keyin ular orasidagi masofa) uyga vazifani tekshirish 1 soatda 90 km 1 …

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