tinh tong cac chu so cua tat ca cac so trong day so tu 1 den 1000
tinh tong cua cac so nho hon 1000 ma cac chu so cua no deu la chu so chan
Tinh tong tat ca cac so nho hon 1000 ma cac chu so cua no deu la chu so chan
tinh tong cac chu so tu 1 den 1000
tinh tong cac chu so tu 1 den 1000
Tim so tu nhien co 2 chu so biet rang
a. So do gap 6 lan tong cac chu so cua no
b. So do gap 7 lan tong cac chu so cua no
c. So do gap 8 lan tong cac chu so cua no
d. So do gap 9 lan tong cac chu so cua no
tinh tong cua cac so co 3 chu so cac so deu chia 5 du 3 tinh tong ca so
tim so tu nhien co hai chu so biet rang so do chia cho tong cac chu so cua no thi duoc thuong cung la tong cac chu so cua no
chu so 1 2 3 5 7 9 tong cua cac so co 5 chu so lap duoc tu cac so tren la