Các câu hỏi tương tự
Neu tang thua so thu nhat them 3 don vi,giu nguyen thua so thu hai thi tich tang them 21 don vi.Neu tang thua so thu hai them 5 don vi,giu nguyen thua so thu nhat thi tich tang them 240 don vi.Tim tich hai so luc dau?
neu giam thua so thu nhat di 6 don vi giu nguyen thua so thu hai thi tich giam di 270 don vi neu tang thua so thu hai them 2 don vi va giu nguyen thua so thu nhat thi tih tang them 16 don vi tim tich 2 so luc dau
Tim mot so.biet rang neu viet them mot chu so 0 vao ben phai so do thi so do tang them 306 don vi
khi viet them chu so 2 vao ben trai mot so co hai chu so thi so do tang len bao nhieu don vi
2 so co tich bang 36 neu gi nguyen thua so thu nhat va them thua so thu thu hai 5 don vi thi duoc tich moi bang 56 tim thua so thu nhat thua so thu hai
neu thua so thu nhat tang them 6 don vi giu nguyen thua so thu hai ti tich cua chung la 42 don vi tim tich cua hai so luc dau
Mot phep chia co so chia la 5,so du la 1. De phep chia la phep chia het va thuong tang them 2 don vi thi can them vao so bi chia? don vi
mot so chia cho 7 thi du 3.hoi phai them vao so do bao nhieu don vi de duoc phep chia het va tang them 3don vi
trong mot phep nhan ,khi giu nguyen thua so thu nhat , tang so thu hai len 2 don vi thi tich se thay doi the nao? khoanh tron vao 4 dap an sau A.tich tang len 2 don vi B.tich tang len 2lan c.tich tang len 4 lan D.tich tang len mot so gap 2lan