Okay. To do front-end addition you add the 2 highest value places. And then fill the rest of the places with zeros.
$$4.11+5.90+8.02$$
We take the 2 highest value places, which are 4.1 5.9 and 8.0
$$\mathbf{4.1}0+\mathbf{5.9}0+\mathbf{8.0}2$$
Now we add these three numbers.
$${\mathtt{4.1}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5.9}}{\mathtt{\,\small\textbf+\,}}{\mathtt{8}} = {\mathtt{18}}$$
How fill the other place values with zeros:
$$\mathrm{18}\textit{.00}$$
There we go.
Okay. To do front-end addition you add the 2 highest value places. And then fill the rest of the places with zeros.
For example:
$${\mathtt{2\,310}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1\,293}}$$
We take the 2 highest value places, which are 23 and 12
$$\mathbf{23}10+\mathbf{12}93$$
Now we add these two numbers.
$${\mathtt{23}}{\mathtt{\,\small\textbf+\,}}{\mathtt{12}} = {\mathtt{35}}$$
How fill the other place values with zeros:
$$\mathrm{35}\textit{00}$$
There we go.
Okay. To do front-end addition you add the 2 highest value places. And then fill the rest of the places with zeros.
$$4.11+5.90+8.02$$
We take the 2 highest value places, which are 4.1 5.9 and 8.0
$$\mathbf{4.1}0+\mathbf{5.9}0+\mathbf{8.0}2$$
Now we add these three numbers.
$${\mathtt{4.1}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5.9}}{\mathtt{\,\small\textbf+\,}}{\mathtt{8}} = {\mathtt{18}}$$
How fill the other place values with zeros:
$$\mathrm{18}\textit{.00}$$
There we go.