Co tat ca bao nhieu chu so co 3 chu so .Chia het cho 3 ma chu so hang tram gap 3 lan chu so hang don vi

Co tat ca bao nhieu so co 3chu so chia het cho 3 ma chu so hang tram gap 3 lan chu so hang don vi........................

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

co bao nhieu so co 3 chu so chia het cho 3 ma chu so hang tram gap 3 lan chu so hang chuc 

co tat ca ca bao nhieu chu so chia het cho 3 ma cs hang tram gap ba hàng đơn vi

1 so tu nhien A co 4 chu so co chu so hang don vi lon hon 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.

- tim so chu so chan co 4 chu so 

- viet tat ca cac so tu 100 den 999phai dung bao nhieu chuvso 9

-co bao nhieu so le co 3 chu so

- viet 1000 sdo tu nyhien dau tien hoi chu so 3 cco mat bao nhieu lan

-viet tap hop cac so tu nhien co 2 chu so trong do a ) chu so hang chuc nho hon hang don vi la 4 b) chu so hang chuc gap 3 lan chu so hang don vi   c) chu so hang chuc nho hon chu so hang don vi ( tong 2 chu so = 12) 

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

tim tat ca cac so co 4 chu so trong do chu so hang tram va chu so hang chuc theo thu tu lap thanh mot so gap 3 lan chu so hang nghin va gap 2 lan chu so hang don vi

cac ban nho neu ca cach lam nha! cam on!