4-sinflar uchun matematika fanidan bilimlar bellashuvida I-variant

amallarni b-g: 804x6+312x9)

36-(175:25+285:15)x7

tenglamani yeching: 30336:x+537=921

720:(x:7+80)=6

masalani yeching. usta va shogird birgalikda 17 kunda 219920 ta detal ishlab chiqarishdi. shogird kuniga 3250 tadan

usta esa shogirdidan nechta ko’p detal yasagan? tomonlari 15 sm va 33 mm bo’lgan to’g’ri to’rtburchakning perimetrini toping. javobini santimetrda ifodalang. hisoblang. 7 t 500kg :6= 3 m 7 sm-93 sm= 12045 sonida nechta o’nlik bor? a)4; b)12; c)120; d)1204

har xil xonali sonlar yig’indisi bo’lgan ifodani ko’rsating: a)5400+5; b)6039+1; c)9000+500+60+3 d)3000+200+2

sonlarni taqqoslang: 26750…26570