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
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 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
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
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
1)viet day tu nhien tu 1-101 tao thanh so A
a) A co phai hop so khong
b)A co phai so chinh phuong khong
c)A co the co 35 uoc khong
2)tim so chinh phuong co 4 chu so chu so hang nghin bang chu so hang don vi va so do co the viet duoi dang (5n+4)2
1.tim 2 so tu nhien co hieu bang 2002 va tich bang 2006.
2.cho 100 so tu nhien 1,2,3,4,....100.
co the chon duoc 71 so tu nhien sao cho tong cua chung bang tong cua 29 so con lai khong
3.mot so chan co 4 chu so , trong do so tao boi chu so hang tram va hang chuc gap 3 lan chu so hang nghin va gap 2 lan chu so hang don vi .
[CAC BAN GHI LOI GIAI GIUP MINH NHE MINH CAM ON]