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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 nhiêu don vị de ty so cua hai so moi van bang ty so cua hai so ban dau
hai so co tong bang 270 so lon hon so be 30 don vi thi phải them vao so lon bao nhieu don vi de ty so cua hai so moi bang ty so cua hai so ban 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 nh...
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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.
tim 2 so co tong cua chung la 257 va neu them vao so lon 13 don vi, so be 9 don vi thi duoc hai so co ty la 1,25
hieu cua 2 so la 62,8.neu tang so lon them 2,6 don vi va giam so be di 4,3 don vi thi 2 lan so lon moi bang 3 lan so be moi.so lon ban dau la....
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 hai so bang 222. biet neu tang so lon them 8 don vi va giam so be di 5 don vi thi so lon gap doi so be. tim so lon?
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=
hieu cua hai so la 62,8 . neu tang so lon them 2,6 don vi va giam so be di 4,3 don vi thi hai lan so lon bang 3 lan so be . tim so lon