tong cua 2 so tu nhien bang 630.tim so be biet,neu bot so be 19 don vi va them vao so lon di 19 don vi thi so be bang ba phan tu so lon.
Bai 1 : Tong cua hai so la 2000. Neu so hang thu nhat them 135 don vi va so hang thu hai bot 531 don vi thi duoc tong moi la bao nhieu?
Bai 2 : Tim tong hai so biet rang neu so hang thu nhat bot di 246 don vi va so hang thu hai them 642 don vi thi duoc tong moi bang 2010.
Bai 3 : Hieu cua hai so la 1000. Neu so lon them 235 don vi va so be bot 200 don vi thi duoc hieu moi la bao nhieu?
Bai 4 : Hieu cua hai so bang 1234. Neu so lon bot 234 don vi va so be them 456 don vi thi duoc hieu moi la bao nhieu?
Bai 5 ; Tim hieu cua hai so, biet rang so lon va so be cung bot di 100 don vi thi duoc hieu moi la 1000.
tong cua 2 so tu nhien la 630.tim so be biet neu bót so be di 19 don vi va them vao so lon 19 don vi thi so be bang 3/4 so lon
tong hai so la 9.neu them so lon 0,4 don vi , bot di 0,4 don vi thi so be bang 2/3 so lon .tim 2 so do
tong cua 2 so bang 222 biet neu tang so lon them 8 don vi va giam so be di 5 don vi thi lon se gap doi so be tim so lon
hai so co tong la 57,3 neu them vao so lon 2,5 don vi va bot o so lon di 1,2 don vi thi duoc 2 so co tong la 79,8
Hieu cua 2 so la 41 biet neu giam so be di 19 lan va them vao so lon 12 don vi thi so be
bang 3/5 so lon tim hai so do
cho 2 so co tong bang 702 biet neu them vao so be 11 don vi va so lon 15 don vi thi duoc 2 so moi co ti so la 2,25 tim so lon
Tong cua 2 so la: 9175. Sau khi them vao so lon 113 don vi va bot o so be 96 don vi thi duoc hai so moi co hieu la 348.Tim hai so do.