Các câu hỏi tương tự
tim mot so co 2 chu so. biet chu so hang chuc>chu so hang don vi la 2 neu lay so do chia tong chu so cua no dc 6 du 1
Tim so tu nhien co 2 chu so biet rang chu so hang chuc lon hon chu so hang don vi la 2 va so do lon hon tong cac binh phuong cac chu so cua no la 1.
tim tat ca cac so tu nhien có 2 chu so biet rang chu so hang don vi nho hon chu so hang chuc la 2 va tich cua chu so do cua no luon lon hon tong cua hai chu so cua nó la 34 don vi
Tong chu so hàng chuc và hai lan hang don vi cua mot so co hai chu so bang 18 .Neu doi hai chu so cho nhau thi duoc so moi hon so da cho 24 don vi . Tim so da cho
tim so tu nhien co hai chu so .Biet rang tong cac chu so bang 6 va neu them vao so don vi thi duoc mot so cung viet bang cac chu so do nhung theo thu tu nguoc lai
viet cac so co 2 chu so ma co chu so hang don vi la so ien truoc cua 3
2 4 6 8 la cac so chan vay thi 1 3 5 7 9 la cac so le khi cong tung so lai ta se duoc 45 so chan la 20 so le la 25 khi chia tong cua cac chu so le
cho tong cua cac chu so chan ta duoc bao nhieu (khong du) de sao cho so do bang tong cua cac chu so le va chu so chan
Tim so tu nhien a, biet rang a la so nho nhat co hai chu so ma khi chia cho 2,3,5,9 deu co so du la 1
TIm so lon nhat, nho nhat co 9 chu so biet so do chia 5,7,9,11 co so du lan luot la 3,4,5,6