tinh bang cach thuan tien nhat phep tinh 1212/1515
tinh bang cach thuan tien nhat: 2,5x12,5x8x0,4
tinh bang cach thuan tien 56.83-34.18-16.63
tinh bang cach thuan tien 2,07+4.15+17,93 +5,85
tinh bang cach thuan tien nhat a) 48,25+12,72+51,75+87,28=??
tinh bang cach thuan tien
72,64 - ( 18,35 +9,29)
tinh bang cach thuan tien nhat 5,6x2+2,8+11,2x2-48,5
tinh bang cach thuan tien nhat: 20/11x33/23x69/180
tinh bang cach thuan tien nhat: (7,5x18,3+26,4x18,3)x(47x11-4700x0,1-47)