Tong 3 so bang 120,khi chuyen tu so thu nhat sang so thu hai 8 don vi va chuyen sang so thu ba 10 don vi va chuyen tu so thu hai sang so thu nhat 15 don vi thi so thu hai gap ruoi so thu nhat va bang 3/7 so thu ba. GIAI RA GIUP MK DE MK BIET CACH LAM NHE SORRY VI DA KO CO DAU
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.
neu chuyen so thu nhat sang so thu hai 7 don vi thi so thu hai lon hon so thu nhat 20 don vi va ti so cua hai so do la 7/13.tim hai so do
nho ghi loi giai nha
neu them vao so thu nhat 3 don vi va bot so thu hai di 7 don vi thi so thu nhat lon hon so thu hai 8 don vi .ti so cua hai so la 8/9 tim hai so do
cho hai so co tong bang 97641.neu chuyen 1035 don vi cua so thu nhat sang so thu hai thi so thu nhat bang 4/5so thu hai. tim hai so da cho.
mot don vi bo doi co 200 nguoi . don vi da chuan bi mot so gao du cho 200 nguoi an trong 20 ngay . sau khi an duoc 2 ngay don vi nhan them 40 chien si nua . hoi so gao con lai du cho don vi an trong bao nhieu ngay nua?
(muc an cua moi nguoi ko thay doi)
mot con trau an het mot bo co trong 16 phut . Nhung trau moi an duoc 4 phut thi co them mot con be an mot minh thi sau bao nhieu lau se het co ?
lai suat tiet kiem cua ngan hang la 0,5% mot thang. Hoi neu mot nguoi gui so tien 10 trieu dong thi sau 3 thang ca tien goc va lai la bao nhieu ?
tim hai so biet so thu nhat bang 2/3 so thu hai. Biet rang neu bot o so thu nhat di 13 don vi thi duoc tong moi la 123 ?
ai lam nhanh 3 bai se duoc tick an na
1.tong cua ba so la 615.biet so thu hai hon so thu nhat 30 don vi nhung lai kem so thu ba 15 don vi.
Vay so thu nhat la:
2.Tong cua hai so la 222. biet rang neu cung them vao moi 9 don vi thi so lon se gap doi so be. So lon la:
3.{2012nhan 99-1006nhan 18} nhan 2013=
hai so co tong la 270 so lon hon so be 30 don vi neu tang so be them 72 don vi thi phai them vao so lon bao nhieu don vi de ty so moi van bang ty so cua hai so ban dau