Các câu hỏi tương tự
tong 2 so la 200 neu tang so thu nhat len 3 lan thi so thu nhat bang 4/7 so thu hai tim hai so
cho tong cua 4 so la 396.neu so thu nhat tang len 5 don vi,so thu hai giam di 5 don vi,so thu ba gap len 5 lan,so thu tu giam di 5 lan thi duoc4 so bang nhau .tim 4 so ban dau
Hieu cua hai so la 4.Neu tang mot so len 3 lan thi hieu cua chung bang 60
mot phep chia co thuong bang 25. neu tang so bi chia len 960 don vi thi thuong moi bang 27 . tim so bi chia va so chia
Hieu hai so thap phan la 171,55.Neu giu nguyen so bi tru va tang so tru len 3 lan thi hieu moi la 117,5.Tim so bi tru va so tru.
tim so chia cua mot phep chia , biet rang : so bi chia 410, so du bang 19
a) tim mot so co hai chu so va neu lay so do chia cho chu so hang don vi thi duoc thuong la 8 va du 7
b) tong cua hai so bang 196 . tim hai so do
c)tim so co 3 chu so , biet rang neu viet them mot chu so 3 vao ben phai so do thi no tang them 2217 don vi
tim so tu nhien co 2 chu so biet rang neu viet chinh so do xen vao giua hai chu so cua no thi so do tang len 99 lan
tim hai stn co thuong bang 35 biet rang neu so bi chia tang them 1056 don vi thi thuong bang 57
tim thuong 1 phep chia biet rang neu tang SBC len 73 don vi tang so chia len 4 don vi thi thuong khong doi con so du tang 5 don vi