Tinh bang cach thuan tien nhat:
A = 1/2 + 2/8 + 3/28 + 4/77 + 5/176
tinh bang cach thuan tien nhat 6,25 x 1,01 + 2,5 x 1,01% + 1,01 x 2,25 - 1,01
Tinh bang cach thuan tien
\(1990\times1990-1992\times1988\)
\(\left(1374\times57+687\times86\right)\div\left(26\times13+74\times74\right)\)
Tinh bang cach thuan tien nhat:
23+47+11+49
4.7.11.25
Tinh bang cach thuan tien nhat:
23+47+11+49
4.7.11.25
5.9.3.2
tinh
M=9/40-11/60+13/84-15/112
(giai bang cach thuan tien)
tinh bang cach thuan tien nhat
a) 9,5 - 3,46 -1,45
b) 10 - 4,23 +1,23
giai bang cach thuan tien: 1 + 2 + 3 + 4 + ....+ 99
Bai 1: tinh nham bang cach thuan tien nhat
A,2000-{46-[24+71*4):15]}
Giup minh voi
