5-sinf matematika imtihon javoblari 2021

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5-sinf matematika 1-topshiriq 1-variant 1. ifodani qiymatini toping: (72 : 200- 0,42 ) : 0,53 (49:200-0,16):0,125 (0,245-0,16):0,125 (0,085):0.125= 0,68 2. tenglamani yeching: (x-375):18=2064:48 (x-375):18=43 x-375=774 x=774+375 x=1149 3. matematika olimpiadasida 32% qatnashchi faxriy yorliq oldi. agar 416 qatnashchi yortiq olgan bo‘lsa, olimpiadaga qancha o‘quvchi qatnashgan? 32% - 416 qatnashuvchi. 100% - x qatnashuvchi x= 100*416 : 32=1300 javob: matematika olimpiadasida 1300 o'quvchi qatnashdi 4. 450 kg, 28 s 5 kg, 3 t 4 s 25 kg ni tonnalarda ifodalang va natijani o’ndan birlar xonasigacha yaxlitlang hamda o‘rta arifmetik qiymatini toping. 450kg-4,5t, 28 s 5kg-0,285t, 3t4s25kg-3,425t yaxlitlash 4,5t, 0,2t, 3,4t o'rta arifmetik (4,5t+0,2t+3,4t)/3=2,7t 5. qirralari yig‘indisi 72 sm ga teng bo‘lgan mis kubning massasini toping. 1 sm3 misning massasi 8,9 g. kubning hajmini, hajmini, kubdagi tomonini topamiz. v = a kub 12 qirraga ega, keyin 1 chekka a = 72/12 = 6 ga teng 63 = 136. m kub = 136 …

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6 0.001) m = (0.47 + 0.006) m = 0.476 m, yuzliklarga yaxlitlangandan so'ng 0.476 m-0.48 m. 3) 25 dan 6 mm = 25 0,001 m = 0,025 m, yuzlab yaxlitlashdan keyin 0,025 m ≈ 0,03 m. 4) raqamlarning o'rtacha arifmetikasi berilgan sonlarning yig'indisi sonlar soniga qarab belgilanadi. shuning uchun: (8.07 + 0.48 + 0.03): 3 = 8.58: 3 = 2.86. 5. uchta bir xil g‘o‘lachadan parallelepiped hosil qilindi. g‘o‘lachalar parallelepiped shaklida bo‘lib, ularning o‘lchamlari a=30sm, b=20sm, c=10sm. hosil bo‘lgan parallelepipedning hajmini toping. 1) 30*20=600 2) 600•10=6000 javob: v=6000 2-topshiriq 1-variant 1. amallarni bajaring:

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5-sinf matematika 1-topshiriq 1-variant 1. ifodani qiymatini toping: (72 : 200- 0,42 ) : 0,53 (49:200-0,16):0,125 (0,245-0,16):0,125 (0,085):0.125= 0,68 2. tenglamani yeching: (x-375):18=2064:48 (x-375):18=43 x-375=774 x=774+375 x=1149 3. matematika olimpiadasida 32% qatnashchi faxriy yorliq oldi. agar 416 qatnashchi yortiq olgan bo‘lsa, olimpiadaga qancha o‘quvchi qatnashgan? 32% - 416 qatnashuvchi. 100% - x qatnashuvchi x= 100*416 : 32=1300 javob: matematika olimpiadasida 1300 o'quvchi qatnashdi 4. 450 kg, 28 s 5 kg, 3 t 4 s 25 kg ni tonnalarda ifodalang va natijani o’ndan birlar xonasigacha yaxlitlang hamda o‘rta arifmetik qiymatini toping. 450kg-4,5t, 28 s 5kg-0,285t, 3t4s25kg-3,425t yaxlitlash 4,5t, 0,2t, 3,4t o'rta arifmetik (4,5t+0,2t+3,4t)/3=2,7t 5. qirralari yig‘indisi 72 sm ga te...

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