Answer :
In order to calculate the value of the expression 1.4 * 0.2 * 1.8, first let's calculate the product of the first two numbers.
To multiply 1.4 by 0.2, we can first multiply 1.4 by 2 and then divide the result by 10:
[tex]\begin{gathered} 1.4\cdot2=2.8 \\ 2.8\colon10=0.28 \end{gathered}[/tex]Now we can calculate the product of 0.28 and 1.8.
To do so, we can multiply 0.28 by 18 and then divide the result by 10:
[tex]\begin{gathered} 0.28\cdot18=5.04 \\ 5.04\colon10=0.504 \end{gathered}[/tex]So the final result of the expression is 0.504.