cho tich xyz biet rang neu them 1 don vi vao x thi tich do tang 1 don vi . neu them 1 vao y tich tang them 2 don vi . neu them 1 vao z thi tich do tang 8 don vi . tinh tich xyz
giup minh nhe
Neu tang them 5 don vi vao thua so thu nhat thi tich moi la 595. Tim 2 thua so biet tich cua chung bang 420.
tim 2 so a va b biet tich cua chung la 444. Neu them 3 don vi vao so b thi tich moi la 555
tim hai so tu nhien biet rang tich cua chung la 630 va neu them 4 don vi vao mot thua so thi tich moi la 798
Tich cua hai phan so la 3/7 neu them vao thua so thu nhat 2 don vi thi tich la 13/21. Tim hai phan so do.
Ai giai that chi tiet va de hieu thi minh tick cho.
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
cho tich xyz biet rang neu them1 vao x thi tich tang 2 don vi tim cac so nguyen thoa man
tich cua 2 so la 444.neu them 3 don vi vao so nhan thi tich moi la 555.tim 2 so do
Tim thuong cua mot phep chia biet rang neu them 15 vao so bi chia va them 5 don vi vao so chia thi thuong va so du khong doi