\(\begin{align}
$ 18.39\\
+$\ \ 7.56\\
\hline
\end{align}\)

8.22 − 4.39

93.6 − 79.84

\(\begin{align}
1.82\\
2.28\\
+2.18\\
\hline
\end{align}\)

6.3 + 2.98 + 7.7

27.96 − 16.2

12.63 + 15.04

9.24 − 2.68

$18 − $3.55

9.73 − 2.52

$54.78 + $43.62

7.25 + 0.25 + 1.5

n − 9.02 = 3.85

n + 31.53 = 62.4

9.2 + n + 8.4 = 20.8

Jake needs 7.58 meters of wood to complete a school project. He buys a 2.25-meter plank of wood and a 3.12-meter plank of wood. How many more meters of wood does Jake need to buy?

Lori needs a length of twine 8.5 meters long to mark a row in her garden. Andrew needs a length of twine 7.25 meters long for his row. They have one length of twine that measures 16.27 meters. After they each take the lengths they need, how much twine will be left?