3-sinf matematika 7-dars
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35, 42 434, 545 54, 45 54, 65 = 2800 = 4800 = 18•5 = 90 = 105•4 = 420 = 27•5 = 135 = 8•63 = 504 368-37 331 331-160 171 171+157 328 331-192 139 139+51 190 328-221 107 107-5 102 28•8= 224 16•6= 96 41•6= 246 37•5= 185 91•7= 637 45•8= 360 87•3= 261 95•2= 190 224 246 185 637 360 261 190 r e a m i n l 26 kg – 3 ta 28 kg – 5 ta ? yechish: 1) 26•3= 78 2) 28•5= 140 3) 140+78 =218 javob:218 kg 1 2 3 4 5 1)600:30= 20 2) 20•9= 180 3) 345+180= 525 4) 768 – 525= 243 5) 243+98= 341 1 m 1 m …
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