3-sinf matematika 5-dars

90 72 56 64 51 54 63 81 s i l o v s i n = = > > = = x • 1 = 239 x = 239 : 1 x = 239 845 – y : 12 = 845 y : 12 = 845 - 845 y : 12 = 0 y = 0 : 12 y = 0 1- kuni – 142 bet 2- kuni – ?, 15 bet kam 3- kuni – ? bet 356 bet yechish: 1) 142 – 15= 127 bet 2) 142 + 127= 269 bet 3) 356 – 269= 87 bet javob: 3-kun 87 bet b•7 m•6 d-(d:2) t+(t•3) 18+16+25= 59 ta 6 • 7 – 13 = 42 – 13 …

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