When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {0+3=3}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ ~}{1.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{3} \overset{~\ }{3} \\ \hline \space{} \, \space{\, } \space{\, }3\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {7+3=10}\)

Because this sum is greater than 9, we write the 0 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ 1}{1.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{3} \overset{~\ }{3} \\ \hline \space{} \, \space{\,. }0\space{\, }3\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {1+0+1=2}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ 1}{1.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{3} \overset{~\ }{3} \\ \hline \space{} \, 2\space{\,. }0\space{\, }3\end{array}\)

Your final answer should be: 42.03

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ 1}{1.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{3} \overset{~\ }{3} \\ \hline 4\space{} \, 2\space{\,. }0\space{\, }3\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {0+5=5}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{2} \overset{\ ~}{2.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{2}\overset{\ ~ }{7.}\overset{ }{5} \overset{~\ }{5} \\ \hline \space{} \, \space{\, } \space{\, }5\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {7+5=12}\)

Because this sum is greater than 9, we write the 2 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{2} \overset{\ 1}{2.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{2}\overset{\ ~ }{7.}\overset{ }{5} \overset{~\ }{5} \\ \hline \space{} \, \space{\,. }2\space{\, }5\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {2+7+1=10}\)

Because this sum is greater than 9, we write the 0 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ 1}{2} \overset{\ 1}{2.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{2}\overset{\ ~ }{7.}\overset{ }{5} \overset{~\ }{5} \\ \hline \space{} \, 0\space{\,. }2\space{\, }5\end{array}\)

Your final answer should be: 50.25

\(\displaystyle \begin{array}{r}\overset{\ 1}{2} \overset{\ 1}{2.}\overset{\ ~}{7}0\\ + \overset{\ ~ }{2}\overset{\ ~ }{7.}\overset{ }{5} \overset{~\ }{5} \\ \hline 5\space{} \, 0\space{\,. }2\space{\, }5\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {2+8=10}\)

Because this sum is greater than 9, we write the 0 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ 1}{6}2\\ + \overset{\ ~ }{2}\overset{\ ~ }{4.}\overset{ }{2} \overset{~\ }{8} \\ \hline \space{} \, \space{\, } \space{\, }0\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {6+2+1=9}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ 1}{6}2\\ + \overset{\ ~ }{2}\overset{\ ~ }{4.}\overset{ }{2} \overset{~\ }{8} \\ \hline \space{} \, \space{\,. }9\space{\, }0\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {0+4=4}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ 1}{6}2\\ + \overset{\ ~ }{2}\overset{\ ~ }{4.}\overset{ }{2} \overset{~\ }{8} \\ \hline \space{} \, 4\space{\,. }9\space{\, }0\end{array}\)

Your final answer should be: 34.90

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ 1}{6}2\\ + \overset{\ ~ }{2}\overset{\ ~ }{4.}\overset{ }{2} \overset{~\ }{8} \\ \hline 3\space{} \, 4\space{\,. }9\space{\, }0\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {4+4=8}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ ~}{0.}\overset{\ ~}{5}4\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{4} \overset{~\ }{4} \\ \hline \space{} \, \space{\, } \space{\, }8\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {5+4=9}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ ~}{0.}\overset{\ ~}{5}4\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{4} \overset{~\ }{4} \\ \hline \space{} \, \space{\,. }9\space{\, }8\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {0+0=0}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ ~}{0.}\overset{\ ~}{5}4\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{4} \overset{~\ }{4} \\ \hline \space{} \, 0\space{\,. }9\space{\, }8\end{array}\)

Your final answer should be: 40.98

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ ~}{0.}\overset{\ ~}{5}4\\ + \overset{\ ~ }{1}\overset{\ ~ }{0.}\overset{ }{4} \overset{~\ }{4} \\ \hline 4\space{} \, 0\space{\,. }9\space{\, }8\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {7+0=7}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{4} \overset{\ ~}{4.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{1.}\overset{ }{0} \overset{~\ }{0} \\ \hline \space{} \, \space{\, } \space{\, }7\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {0+0=0}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{4} \overset{\ ~}{4.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{1.}\overset{ }{0} \overset{~\ }{0} \\ \hline \space{} \, \space{\,. }0\space{\, }7\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {4+1=5}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{4} \overset{\ ~}{4.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{1.}\overset{ }{0} \overset{~\ }{0} \\ \hline \space{} \, 5\space{\,. }0\space{\, }7\end{array}\)

Your final answer should be: 85.07

\(\displaystyle \begin{array}{r}\overset{\ ~}{4} \overset{\ ~}{4.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{1.}\overset{ }{0} \overset{~\ }{0} \\ \hline 8\space{} \, 5\space{\,. }0\space{\, }7\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {3+4=7}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ ~}{3.}\overset{\ ~}{4}3\\ + \overset{\ ~ }{1}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{4} \\ \hline \space{} \, \space{\, } \space{\, }7\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {4+7=11}\)

Because this sum is greater than 9, we write the 1 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{3} \overset{\ 1}{3.}\overset{\ ~}{4}3\\ + \overset{\ ~ }{1}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{4} \\ \hline \space{} \, \space{\,. }1\space{\, }7\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {3+8+1=12}\)

Because this sum is greater than 9, we write the 2 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ 1}{3} \overset{\ 1}{3.}\overset{\ ~}{4}3\\ + \overset{\ ~ }{1}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{4} \\ \hline \space{} \, 2\space{\,. }1\space{\, }7\end{array}\)

Your final answer should be: 52.17

\(\displaystyle \begin{array}{r}\overset{\ 1}{3} \overset{\ 1}{3.}\overset{\ ~}{4}3\\ + \overset{\ ~ }{1}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{4} \\ \hline 5\space{} \, 2\space{\,. }1\space{\, }7\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {1+8=9}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ ~}{3}1\\ + \overset{\ ~ }{2}\overset{\ ~ }{3.}\overset{ }{1} \overset{~\ }{8} \\ \hline \space{} \, \space{\, } \space{\, }9\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {3+1=4}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ ~}{3}1\\ + \overset{\ ~ }{2}\overset{\ ~ }{3.}\overset{ }{1} \overset{~\ }{8} \\ \hline \space{} \, \space{\,. }4\space{\, }9\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {0+3=3}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ ~}{3}1\\ + \overset{\ ~ }{2}\overset{\ ~ }{3.}\overset{ }{1} \overset{~\ }{8} \\ \hline \space{} \, 3\space{\,. }4\space{\, }9\end{array}\)

Your final answer should be: 33.49

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{0.}\overset{\ ~}{3}1\\ + \overset{\ ~ }{2}\overset{\ ~ }{3.}\overset{ }{1} \overset{~\ }{8} \\ \hline 3\space{} \, 3\space{\,. }4\space{\, }9\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {2+1=3}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{7.}\overset{\ ~}{0}2\\ + \overset{\ ~ }{4}\overset{\ ~ }{3.}\overset{ }{3} \overset{~\ }{1} \\ \hline \space{} \, \space{\, } \space{\, }3\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {0+3=3}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{1} \overset{\ ~}{7.}\overset{\ ~}{0}2\\ + \overset{\ ~ }{4}\overset{\ ~ }{3.}\overset{ }{3} \overset{~\ }{1} \\ \hline \space{} \, \space{\,. }3\space{\, }3\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {7+3+1=11}\)

Because this sum is greater than 9, we write the 0 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ 1}{1} \overset{\ ~}{7.}\overset{\ ~}{0}2\\ + \overset{\ ~ }{4}\overset{\ ~ }{3.}\overset{ }{3} \overset{~\ }{1} \\ \hline \space{} \, 0\space{\,. }3\space{\, }3\end{array}\)

Your final answer should be: 60.33

\(\displaystyle \begin{array}{r}\overset{\ 1}{1} \overset{\ ~}{7.}\overset{\ ~}{0}2\\ + \overset{\ ~ }{4}\overset{\ ~ }{3.}\overset{ }{3} \overset{~\ }{1} \\ \hline 6\space{} \, 0\space{\,. }3\space{\, }3\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {7+2=9}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{4} \overset{\ ~}{6.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{4.}\overset{ }{7} \overset{~\ }{2} \\ \hline \space{} \, \space{\, } \space{\, }9\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {0+7=7}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{4} \overset{\ ~}{6.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{4.}\overset{ }{7} \overset{~\ }{2} \\ \hline \space{} \, \space{\,. }7\space{\, }9\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {6+4+1=11}\)

Because this sum is greater than 9, we write the 0 from the ones place and carry the 1 from the tens place over to the left. Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ 1}{4} \overset{\ ~}{6.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{4.}\overset{ }{7} \overset{~\ }{2} \\ \hline \space{} \, 0\space{\,. }7\space{\, }9\end{array}\)

Your final answer should be: 90.79

\(\displaystyle \begin{array}{r}\overset{\ 1}{4} \overset{\ ~}{6.}\overset{\ ~}{0}7\\ + \overset{\ ~ }{4}\overset{\ ~ }{4.}\overset{ }{7} \overset{~\ }{2} \\ \hline 9\space{} \, 0\space{\,. }7\space{\, }9\end{array}\)

When we add with multi-digit numbers with decimals, we start with the numbers furthest to the right and work our way towards the left.

Add the numbers in the hundredths place:

\(\displaystyle {1+2=3}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{2} \overset{\ ~}{1.}\overset{\ ~}{0}1\\ + \overset{\ ~ }{4}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{2} \\ \hline \space{} \, \space{\, } \space{\, }3\end{array}\)

Add the numbers in the tenths place:

\(\displaystyle {0+7=7}\)

Your work should look something like this:

*Notice that the decimal moves directly down when we are adding decimal numbers.

\(\displaystyle \begin{array}{r}\overset{\ ~}{2} \overset{\ ~}{1.}\overset{\ ~}{0}1\\ + \overset{\ ~ }{4}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{2} \\ \hline \space{} \, \space{\,. }7\space{\, }3\end{array}\)

Add the numbers in the ones place:

\(\displaystyle {1+8=9}\)

Your work should look something like this:

\(\displaystyle \begin{array}{r}\overset{\ ~}{2} \overset{\ ~}{1.}\overset{\ ~}{0}1\\ + \overset{\ ~ }{4}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{2} \\ \hline \space{} \, 9\space{\,. }7\space{\, }3\end{array}\)

Your final answer should be: 69.73

\(\displaystyle \begin{array}{r}\overset{\ ~}{2} \overset{\ ~}{1.}\overset{\ ~}{0}1\\ + \overset{\ ~ }{4}\overset{\ ~ }{8.}\overset{ }{7} \overset{~\ }{2} \\ \hline 6\space{} \, 9\space{\,. }7\space{\, }3\end{array}\)