Add 81 to 153. Ignore the negatives for a while.
$${\mathtt{81}}{\mathtt{\,\small\textbf+\,}}{\mathtt{153}} = {\mathtt{234}}$$
Now, put the negative behind the 234.
$$-234$$
So, $$-234$$ Is our answer
Add 81 to 153. Ignore the negatives for a while.
$${\mathtt{81}}{\mathtt{\,\small\textbf+\,}}{\mathtt{153}} = {\mathtt{234}}$$
Now, put the negative behind the 234.
$$-234$$
So, $$-234$$ Is our answer