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tim hai so co hieu bang hai tram muoi sau biet rang neu them mot chu so khong vao ben phai so be thi duoc so lonhieu cua hai so bang ba tram chin muoi ba biet rang neu xoa chu so cuoi cua so lon thi duoc so behien nay bo ba mot tuoi con bon tuoi .Hoi bao nhieu nam nua tuoi bo gap bon lan tuoi con
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giai nhanh giup minh nhe minh can rat rat gap
cho mot so co ba chu so ma chu so hang tram la 4.neu xoa bo chu so 4 nay di,ta duoc mot so co hai chu so.biet tong cua so co ba chu soda cho vaso co hai chu soco duoc sau khi xoa chu so 4la 450.tim so co ba chu so da cho ban dau.
tim so co ba chu so biet rang neu doi chu so hang tram va don vi cua no cho nhau thi gia tri cua no khong thay doi con chu so hang chuc bang mot phan ba tong hai chu so kia
TIM MOT SO TU NHIEN BIET , NEU XOA CHU SO 0 HANG DON VI CUA NO DI TA DUOC SO MOI KEM SO PHAI TIM 1818DON VI . SO PHAI TIM LA .....
tim mot so tu nhien biet neu xoa chu so 0 hang don vi cua no di ta duoc so moi kem so phai tim 1809 don vi .tim so do
tim mot so tu nhien biet neu xoa chu so 0 o hang don vi cua no di ta duoc so moi kem so phai tim la 1809 don vi ?
tim mot so co nam chu so biet rang neu xoa di chu so 7 o hang don vi cua so do thi duoc so moi kem so phai tim 11 482 don vi
tim mot so tu nhien co 4 chu so biet rang neu xao di 2 chu so cuoi thi duoc so moi be hon so ban dau la 1496
phan tich giup minh voi
biet bai nao giai ho bai y
1tim mot so co 2 chu so biet rang so do gap 5 lan tong chu cac so cua no
tim so co 3 chu chu so biet rang them chu so 5 vao ben phai so do thi so do tang them 1112dv
tim mot so tu nhien co 2 chu so biet rang them chu so 9 vao ben trai so do thi duoc mot so gap 13 lan so da cho