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Tim so co 5 chu so tong cua 5 chu so do bang 8 . chu so hang chuc nghin lon hon 5 va gap 3 lan chu so hag chuc
tim so co 5 chu so chu so hang chuc nghin gap 6 lan chu so hang tram va tong cac chu so do bang 7
tim so co 5 chu so co chu so hang chuc nghin gap 6 lan chu so hang tram va tang cac chu so cua so do bang 7
tim so co 4 chu so,biet chu so hang don vi gap 2 lan chu so hang chuc ,chu so hang chuc gap 2 lan chu so hang tram ,chu so hang tram gap 2 lan chu so hang nhginn.So do la: ?
tim so co ba chu so ma chu so hang chuc gap 3 lan chu so hang tram ,chu so hang don vi gap 3 lan chu so hang chuc
16 tháng 10 2015 lúc 17:43
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 SO CO BA CHU SO BIET TRUNG BINH CONG 3 SO DO BANG 3 ,CHU SO HANG DON VI GAP DOI TONG CAC CHU SO HANG TRAM VA HANG CHUC
tim so co 5 chu so ma chu so hang chuc nghin la 3, neu xoa chu so 3 do thi duoc so co 4 chu so bang 1/9 so can tim
a la so can tim co 5 chu so .chu so hang chuc nghin hon kem hang nghin la 6 don vi. chu so hang don vi bang 1/3 chu so hang nghin