Các câu hỏi tương tự
tim so tu nhien co 4 chu so biet rang hang nghin bang hang don vi, chu so hang chuc bang chu so hang tramva duoc viet duoi dang tich cua 3 so nguyen to lien tiep
Tim so tu nhien co 4 chu so . Chu so hang nghin bang chu so hang don vi . Chu so hang tram bang chu so hang chuc va so do duoc viet dang tih cua 3 so nguyen to lien tiep
Giup mk nhe ! Mk kb
1. Tim tat ca cac so co 2 chu so sao cho moi so gap 2 lan tich cua no?
2. Tim so nguyen to co 3 chu so biet rang neu viet so do theo thu tu nguoc lai thi ta duc 1 so la lap phuong cua 1 so tu nhien?
3. Tim so tu nhien co 4 chu so biey chu so hang nghin bang chu so hang don vi chu so hang tram bang chu so hang chuc va so do viet duoc duoi dang tich cua 3 so nguyen to lien tiep?
tim scp co 4 chu so , biet rang cac chu so hang tram hang nghin hang chuc hang don vi theo thu tu do lam thanh 4 stn lien tiep tang dan
viet so tu nhien N =12345678910111213141516...70 ,
a)so N co bn chu so
,b) cs hang don vi cua so 53 dung hang thu may (ke tu trai sang phai moi cs 1 hang),
c) cs viet o hang thu 120 la cs nao?cs do cua so tn nao
Bon so tu nhien lien tiep theo thu tu tang dan la cac chu so hang nghin , hang tram , hang chuc , hang don vi . cua mot so co 4 chu so. Viet cac chu so cua no theo thu tu nguoc lai ta se duoc mot so moi co bon chu so lon hon so ban dau ......don vi
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Tim 2 so tu nhien lien tiep trong do co 1 so chia het cho 9 biet tong cua hai so co dac diem nhu sau
a, Co 3 chu so
b, Chia het cho 5
c, Tong chu so hang tram va chu so hang don vi phai chia het cho 9
d, Tong chu so hang tram va hang chuc phai chia het cho 4
tim so tu nhien co 4 chu so biet rang so nay chia 3 du 2, cac chu so hang ngan,hang chuc, hang tram, hang don vi lan luot la la cac so tu nhien lien tiep tang dan va trong 4 chu so do khong co chu so nao bang 7
Bai 1:Cho so tu nhien A co 4 chu so. Co chu so hang don vi gap 3 lan chu so hang tram chu so hang chuc gap 8 lan chu so hang nghin. Biet A chia het cho 9.Tim A
Bai 2: Tim tat ca cac so dang 6x14y. Biet rang so do chia het cho 3,4 va 5