Các câu hỏi tương tự
tinh bang cach thuan tien nhat
59/18 + 75/14 + 46/9 + 5/2 + 47/18 + 15/7
1+2+3+4++5+6+7+8+9+10+11+12+13+14++15+16+17+18+19+20
Hoi tong tren bang bao nhieu (tinh nhanh va giai thich cach lam)
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20=????????? ko dung may tinh oke!!!
Tinh
a , 1 5 + 4 11 + 4 5 + 7 11 b , 5 6 + ( 5 9 - 1 4 )
y x 18/5 - y x 3/5 =...
4/6 + 7/13 + 17/9 + 19/13 - 8/9 + 14/6
b,8/5 11/8 16/13 14/11 21/18 5/2
tinh : A=5 + 6+7+8+9+10+11+12+13+14+15
khong lam phep tinh ,hay cho biet ket qua cua moi phep tinh sau co tan bang chu so nao ?giai thich tai sao?
a.2*4*6*8...*96*98*5
b.5*15*25*...*2025
c.59*69*79*89-21*41*61*81
d.4*14*24*...*2024
Tính
a , 1 2 × 1 3 - 1 8 = b , 5 2 : 1 4 - 1 8 =