Chapter 0, Problem 16P

To determine

To find: the difference of the given numbers

Answer to Problem 16P

Hence, the required difference is $73.2-42.86=30.34$

Explanation of Solution

Given:

  $73.2-42.86$

Calculation:

Decimal subtraction is like any other subtraction but it should be ensured that digits afterdecimal are same in both.

Thus, 0 is annexed to 73.2 after decimal to write it as 73.20

Then subtraction is performed in normal way. Forget about decimal point

  $\begin{array}{l}7320\\ \underset{\_}{-4286}\\ 3034\end{array}$

Now, decimal point is placed after 2 digits from end as it was placed so in each entry for addition.

Thus, difference of numbers $73.2-42.86$ is 30.34

Hence, the required difference is $73.2-42.86=30.34$

Conclusion:

Hence, the required difference is $73.2-42.86=30.34$