2_sinf_matematika_134_dars_yaxlit sonlarni ko'paytirish

sinf: 2 chorak: 4 dars: matematika mavzu: yaxlit sonlarni ko'paytirish 134-dars dars shiori matematika fanlar ichra shoh, uning sirlaridan bo’lamiz ogoh 20•3=60 40•2=40+40=80 800•2=800+800=1600 70•3=70+70+70=210 400•5=400+400+400+400+400=2000 200•6=200+200+200+200+200+200=1200 50•4=50+50+50+50=200 40•3=4•10•3=(4•3)•10=120 30•50=3•10•5•10=(3•5)•10•10=1500 300•5=3•100•5=(3•5)•100=1500 60•70=6•10•7•10=(6•7)•10•10=4200 50•6=5•10•6=(5•6)•10=300 20•9=2•10•9=(2•9)•10=180 700•3=7•100•3=(7•3)•100=2100 70•80=7•10•8•10=(7•8)•10•10=5600 80•(5•2)=80•10=800 7•(50•2)=7•100=700 3•(5•40)=3•200=600 40•(4•5)=40•20=800 6•(20•5)=6•100=600 70•(2•5)=70•10=700 rezavorlar - 20 kg mevalar - ?, 2 marta ko’p sabzavotlar -?, 60 kg ko’p jami - ? kg yechish: 20•2=40 20+60=80 20+40+80=140 javob:140 kg mahsulot 1 ta pishl...

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