1.5×4= 2.5×4= 0.13×4= 5.4÷10= 0.18×0.3= 4.2×1000= 0.45÷0.15= 3.6÷0.1= 8.5×100= 8.5÷ 1.7= 3.2÷100= 1.2÷0.3 = 0.49÷7= 0 .04×25= 84÷4.2= 0.5×100= 0÷0.25= 1÷0.01=