=9+3
= 12。
(2)4.2 divided by1.5+5.8x1.5 = 2.8+8.7.
= 1 1.5。
(3)27.8 divided by 0. 125 divided by 8=27.8 divided by (0. 125x8)
=27.8 divided by 1
=27。 8。