Calculate \(3.6 + 14.73\). Make sure that units line up with units, tenths line up with tenths and so on. Use zeros as placeholders if you need to. David is doing some DIY. He buys a \({2}~m\) length ...

Have you ever tried to add or subtract fractions that have different denominators? It’s tricky, right? Join Ms. Susanna Post in this lesson to learn how to solve these types of challenging problems!

When subtracting decimals remember to keep the decimal points in line with each other. You can add zeros after a decimal point without affecting its value, so \({2}\) is the same as \({2.00}\). David ...