5 sinf matem 68 bet kitobdan
2-qism

1-masala
Yechish:
a) 100-(45+30)=25%
b) 75÷100×360=270
c) 360-270=90
Javob: a) 25% i bolalar
b) 270 nafar katta yoshdagi tomoshabinlar
c) 90 nafar bolalar

2-masala
Yechish:
a) 210000÷1500000×100=14%
b) 450000÷1500000×100=30%
c) 100%-(14%+30%)=56%
Javob: a) U oylik maoshini 14% ini yõlkiraga sarflaydi.
b) U oylik maoshini 30% ini ovqatlanishga sarflaydi.
c) U oylik maoshini 56% ini jamğaradi.

3-masala
a) 4÷5×100=80 %
b) 100-80=20 %

4-masala
a) 11÷20×4000=2200 2200÷4000×100=55%
b) 800+2200=3000
4000-3000=1000 1000÷4000×100=25%

5-masala
Yechish:
55÷100×420=231 (õğil bolalar)
420-231=189 (qizlar)
231-189=42
Javob: Õğil bolalar qizlardan 42 nafarga kõp.

6-masala
Yechish:
1250-750=500 (õğil bolalar)
500÷1250×100=40%
Javob: Õğil bolalar jami õquvchilarning 40% ini tashkil qiladi.


Toshkent shahar Mirzo Ulug‘bek tumani
Aminova Maftuna Farhod qizi