Tim so co 3 chu so biet rang chu so hang tram gap 2 lan chu so hang don vi va chu so hang don vi gap 3 lan chu so hang chuc Tim so do ?

Bai nay hoi kho mot chu nha!

tim mot so co hai chu so biet rang so do gap 7 lan tong cua no va chu so hang chuc hon chu so hang don vi la 4

tim mot so co ba chu so biet rang chu so hang tram gap 2 lan chu so hang chuc,chu so hang chuc gap 3 lan chu so hang don vi

Tim so co hai chu so, biet rang so do gap 9 lan chu so hang don vi cua no.

tim mot so chan co nam chu so khac nhau ,biet rang chu so hang chuc nghin gap 3 lan chu so hang don vi,chu so hang nghin gap 5 lan chu so hang chucva chu so hang tram gap 4 lan chu so hang chuc

tim 1 so co 2 chu biet rang so do  gap 9 lan chu so hang don vi

Tim so co hai chu so , biet rang so do gap 14 lan chu so hang don vi cua no

Tim mot do tu nhien co 3 chu so abc biet rang neu doi chu so hang tram va chu so hang don vi cho nhau thi so moi lon hon so cu 792 đơn vị ,chu so hang don vi gap 3 lan chu so hang chuc

Tim mot so chan co nam chu so khac nhau biet rang chu so hang chuc nghin gap ba lan chu so hang don vi chu so hang nghin gap 5 lan chu so hang chuc va chu so hang tram gap 4 lan chu so hang chuc .