Voi 2 chu so V va X so la ma lon nhat co the viet duoc co gia tri trong he thap phan la

voi ca 2 chu so i va v co the viet dc may so la ma

(trog do moi chu so co the viet nhieu lan)

voi 2 chu so V va I co the viet duoc so La Ma lon nhat ? 

((moi so co the trung nhau hoac k trụng)

voi hai chu so V ; I chu so la ma lon nhat co the viet duoc la

tim mot so thap phan ma o phan nguyen la so chan be nhat co 3chu so khac nhau , phan thap phan la so le lon nhat co 2 chu so khac nhau

voi hai chu so V va X co the viet duoc bao nhieu so La Ma nho hon hoac bang 30

voi hai chu so v va l co the viet dc bao nhieu so la ma vay?

trong 1 phep tru co so bi tru la so tu nhien con so tru la so thap phan ma phan thap phan cúa co 1 chu so 1 ban hc sinh viet thieu dau phay nen tien hanh tru tru nhu tru so tu nhien va ket qua tim duoc la 164 tim so tru va so bi tru biet hieu dung la 328,7

Cau 1 co tat ca ..... so co 2 chu so ma hieu 2 chu so cua moi so do bang 6

Cau 2 so lon nhat co 2 chu so ma hieu 2 chu so cua moi so do bang 5 . La :.............

Cau 3 so be nhat co 2 chu so ma tong 2 chu so cua moi so do bang 9 . La : .............