1) (0.5 + 0.2) + 0.3 = 0.5 + (0.2 + 0.3)2) (0.4 - 0.1) + 0.2 = 0.4 + (-0.1 + 0.2)3) (0.3 x 0.2) x 0.5 = 0.3 x (0.2 x 0.5)4) (0.6 / 0.2) x 0.4 = 0.6 / (0.2 x 0.4)5) (0.8 + 0.1) - 0.2 = 0.8 + (0.1 - 0.2)
1) (0.5 + 0.2) + 0.3 = 0.5 + (0.2 + 0.3)
2) (0.4 - 0.1) + 0.2 = 0.4 + (-0.1 + 0.2)
3) (0.3 x 0.2) x 0.5 = 0.3 x (0.2 x 0.5)
4) (0.6 / 0.2) x 0.4 = 0.6 / (0.2 x 0.4)
5) (0.8 + 0.1) - 0.2 = 0.8 + (0.1 - 0.2)