- 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)
viet 1000 so tu nhien dau tien. hoi chu so 3 xuat hien bao nhieu lan
Cau 1: viet 1000 so tu nhien dau tien , hoi chu so 3 co mat bao nhieu lan.
Cau 2:de danh so trang 1 quyen sach nguoi ta dung 1995 chu so.hoi cuon sach day bao nhieu trang.
Cau 3:Giai thich tai sao :
a/so co 4 chu so xyxy khi chia cho so 2 chu so xy lai co thuong la 101.
b/so co 6 chu so xyvxyv khi chia so co 3 chu so xyv lai co thuong la 1001
Cau 4: Cho day so 4,7,10,13,16,.....
a/tim so thu 100 cua day,so thu n cua day .
b/So 45+23 co mat trong day do ko
Cau 5:tim so tu nhien co 5 chu so,biet rang neu them 2 chu chu so vo dang su so do thi duoc so lon gap 3 lan so do co duoc bang cach viet them chu so 2 vao da truoc so do
Viet 999 so tu nhien lien tiep tu ke tu 1 . Hoi :
a. Chu so 1 co mat bao nhieu lan ?
b. Chu so 0 co mat bao nhieu lan ?
vIET 1000 CS dau tien hoi cs 3 xuat hien bao nhieu lan
viet 1000 so tu nhien dau tien hoi chu so 3 xuat hien ...........lan
viet 1000 so tu nhien dau tien. hoi chu so 3 co mat bao nhieu lan? viet loi giai day la sach luyen toan cau xin hom nay minh nop roi nho giai giup
Viết 1000 chư sô dau tien hoi chu so3 xuat hien bao nhieu lan?
Viet 100 so tu nhien dau tien. hoi phai dung bao nhieu chu so 3 de viet