Chapter 1, Problem 8QC

To determine

Money with the boy at last.

Answer to Problem 8QC

  $\$13.25$

Explanation of Solution

Given information:

Money the boy initially had $=\$9.50$

Money received by boy from his sister $=\$3.75$

Calculation:

To find money left with the boy, we have to perform addition between two amounts.

The addition operation has been performed below for the given numbers-

  $\underset{\_}{\begin{array}{l}\underset{\_}{\begin{array}{l}\$9.50\\ +\$3.75\end{array}}\\ \$13.25\end{array}}$

First, we will add numbers after the decimal basis their position, adding 0 and5 will result in 5, subtracting 5and7 will result in 12, we will keep number at one’s place and will carry forward the number at ten’s position.

Here we have kept 2 and carry forward 1, now adding9, 3andcarry forwarded 1 will yield 13.

So, the final answer is $\$13.25$