Voi 3 chu so 4, 0, 8 hay viet so co 3 chu so khong lap lai cung 1 chu so
Voi cac chu so 0,3,1,5 viet tat ca 4 chu so khong lap lai cung 1 chu so va
a)chia het cho 3
Các số đó là: 1035; 1053; 1350; 1305; 1503; 1530; 3015; 3051; 3105; 3150; 3510; 3501; 5013; 5031; 5103; 5130; 5301; 5310.
tu 3 chu so 3 , 4 ,5 viet tat cacac so co 3 chu so(moi chu so khong duoc lap lai)
tu 3 chu so 3,4,5 suy ra
345 354 435 453 543 534
1) cho 5 chu so khac nhau voi cung ca 5 chu so nay co the lap duoc bao nhieu so co 5 chu so
2) viet cac so tu nhien co 4 chu so trong do co hai chu so 3, mot chu so 2va mot chu so 1
3)tim so tu nhien co tan cung bang 3 biet rang neu xoa chu so hang don vi thi so do giam di 1992 don vi
B1: Voi cung ca 4 chu so :9;6;3;2 co the viet tat ca bao nhieu chu so co 4 chu so
B2: Ban Gia mua 1 quyen sach day 678 trang.Ban Gia danh so trang tu 1 den 678.Hoi can viet bao nhieu chu cac chu so de danh het so trong quyen sach
B3:khi viet tat ca cac so tu nhien tu 1den 100 thi
A,chu so 2 lap lai bao nhieu lan
B,chu so 3 lap lai bao nhieu lan
cac ban lam tung bai mot cung dc
cam on cac ban
B1: Voi cung ca 4 chu so :9;6;3;2 co the viet tat ca bao nhieu chu so co 4 chu so
B2: Ban Gia mua 1 quyen sach day 678 trang.Ban Gia danh so trang tu 1 den 678.Hoi can viet bao nhieu chu cac chu so de danh het so trong quyen sach
B3:khi viet tat ca cac so tu nhien tu 1den 100 thi
A,chu so 2 lap lai bao nhieu lan
B,chu so 3 lap lai bao nhieu lan
cac ban lam tung bai mot cung dc
cam on cac ban
tim so co ba chu so bang nua tong cua tat ca nhung so co hai chu so duoc lap tu 3 chu so cua no ma khong lap lai
Hay lap tat ca cac so co 4 chu so trong do co hai chu so 3 mot chu so 2 va mot chu so 1
ai lam duoc ma khong can gau minh cho 3 tick
1233,1323,1332,2133,2313,2331,3123,3213,3132,3312,3321,3231 k cho minh nha
3321 ; 3312 ; 3132 ; 3231 ; 1332 ; 1323 ; 1233 ; 2133 ; 2312 ; 2331
co nao nhieu cach de tao ra 1 so chan co 3 chu so tu cac chu so 0,1,2,3,4,5 sao cho moi so khong co chu so nao lap lai
1..Voi cac chu so 0;1;2;8.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan nguyen
2..Voi cac chu so 2;8;1;5.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan nguyen
3..Voi cac chu so 0;4;6;8.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 3 chu so o phan thap phan
4..Voi cac chu so 0;2;4;6.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan thap phan
mk biết câu 1 thui ,
chắc là 6 nhé :>