Bang 125 vi 1+2+5=8 ma 8*125=1000
Bang 125 vi 1+2+5=8 ma 8*125=1000
tim mot so co 3 chu so biet lay so do nhan voi tong cac chu so cua no ta duoc ket qua la 1000
giup to giai nhanh nhe to sap thi roi
Tim mot so biet khi nhan so do voi tong so do ta duoc 1000(so co 3chu so)
Tim hai so biet tong cua chung bang 1000 va biet neu dem so thu nhat nhan voi 5;so thu hai nhan voi 3 thi duoc hai tich co ket qua bang nhau.
tim so co 3 chu so biet so do nhab=n voi tong cac chu so cua no thi duoc 1000
cho 3 so co tong bang 162,5. Biet neu dem so thu nhat nhan voi 4 , so thu hai nhan voi 3 va so thu ba nhan voi 2 ta duoc 3 tich bang nhau. Tim 3 so.
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?
2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?
3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?
4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1, con neu giu nguyen tu so va cong them 3 thi ta duoc phan so moi bang 1/2 .Tim phan so do?
5. Hay cho biet co tat ca bao nhieu so co 3 chu so ma tong co chu so cua moi so bang 4 . co tat ca bao nhieu so thoa man?
Cho 3 so co tong la 321,95.neu dem so thu nhat nhan voi 3 so thu hai nhan voi 4 so thu ba nhan voi 5 thi duoc 3 so bang nhau. Tim 3 so do
1)trong mot phepnhan co thua so thu hai la 64, khi thuc hien phep nhan, ban Minh da viet cac tich rieng thang cot voi nbhau nen ket qua tim duoc la 870. tim tich dung cua phep nhan
2 ) Khi thuc hien phep nhan 983 voi 1 so co 3 chu so , ban binh da dat tich rieng thu 2 thang cot voi tich rieng thu 3 nen duoc ket qua la 70776 . Em hay tim thua so co 3 chu so chua biet trong phep nhan tren , biet chu so hang tram hon chu so hang chuc 1 don vi
Cho ba so co tong bang 321,95 . Biet neu dem so thu nhat nhan voi 3 so thu hai nhan voi 4 so thu ba nhan voi 5 thi ta duoc 3 ket qua bang nhau . Tim so thu ba