Question

口算 0.6×0.9 = 1.875×0 = 3.6×0.2 =

口算直通车． 1.3×0.2= 3.5×0.3= 3.8×0.1= 0.6×0.9= 1.875×0= 3.6×0.2=

Answer 1

1.3×0.2=0.26 3.5×0.3=1.05 3.8×0.1=0.38 0.6×0.9=0.54 1.875×0=0 3.6×0.2=0.72