Hai so co tong bang 17, neu giu nguyen so hangthu nhat va themvao so hang thu 2 6 don vi thi tong moi thay doi nhu the nao ??? MOI NGUOI GIUP MK NHANHH NHE AI NHANH MINK TICK CHO
trong phep cong co tong bang 69,neu giu ngyen mot so hang va tang so hang kia them 26 don vi thi tong moi la
tong cu hai so la
so chan tron lon nhat . neu co them vao so hang thu nhat la so le co mot chu so lon nhat thi tong bang bao nhieu
Hai so co hieu bang 43 neu giu nguyen so bi tru va them vao so tru 7 don vi thi hieu moi bang bao nhieu???
tong cua hai so la 35 . khi them vao so hang thu nhat 6 don vi thi tong cua hai so la bao ??
tong cua hai so la 83 . khi bot so hang thu hai di 7 don vi thi tong cua hai so la bao nhieu ??
hieu cua hai so la 55. ki them vao so bi tru 9 don vi thi hieu cua hai so la bao nhieu ??
hieu cau hai so la 28 . khi them vao so tru 8 don vi thi hieu cua hai so do la bao nhieu ??
hieu cua hai so la 82,neu giam so bi tru di 6 don vi va giu nguyen so tru thi hieu moi bang bao nhieu
tong hai so bang 45, so hang thu nhat la so lien sau so be nhat co hai chu so. tim so hang thu hai
trong mot phep tru ta co hieu so la 54.neu giu nguyen so bi tru va them vao so tru 5don vi thi hieu so moi la bao nhieu
co bao nhieu so co 3 chu so khac nhau ma tong cac chu so hang tram va hang chuc bang 5