Chắc toán tổng hiệu
Số lớn : ( Tổng + hiệu ) : 2
Số bé : ( Tổng - hiệu ) : 2
so lon:[tong+hieu]:2
so be:[tong -hieu]:2
tim hai so biet so lon gap 4 lan so be neu moi so cong them 27 don vi thi duoc so lon moi gap 3 lan so be moi
nho giai het ra cho to nhe
hieu hai so la 4,2.neu so lon tang 5 lan va giu nguyen so be thi duoc hieu moi la 43,2.tim so be
cac bn ghi day du cach nha,ai lam nhanh ma dung nhat mk tick
tong 2 so = 368. Tim so lon biet neu cung bot moi so di 9 don vi , thi so be = 2/3 so lon . Tim so lon
hieu cua hai so la175 neu so be tang 13 don vi va giu nguyen so lon thi so lon bang 3/5 so be moi tim so be ban dau
tong cua hai so 28,1 so lon hon so be 9,1 don vi hoi cung phai bot moi so di bao nhieu don vi de so lon gap doi so be
tong cua hai so la 28,1.so lon hon so be 9,1 don vi . hoi cung phai bot di moi so di bao nhieu don vide so lon gap doi so be
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....
tong cua hai so la 30,3 biet so lon hon do be 8,5 don vi hoi cung bot o moi so bap nhieu don vi de so lon gap 3 lan so be
hai so co tong la 187 . neu bot so be di 12 don vi thi so duoc so moi bang 2/3 so lon . tim so lon
