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Having met our friends decimals again yesterday, we'll introduce them to each other. How do you add a pair of decimals? Well, if you use column addition the process is pretty much the same as adding any other number;

Step one, line up the place value. So I've put the 0s in line, that's the units. Then the decimal point - it always, always, always separates whole units from tenths. Always! Next, line up the tenths.

Step two, pop the decimal point in the answer box so you don't forget later. 

Step three, add the smallest place value - in this case, 6 tenths + 4 tenths, which is 10 tenths. And what's ten tenths? If you said one unit, you are what I like to call correct. We'll carry it over - the proper way to say it is 'exchange between place value'.

Step four, let's add the units. Now, we've got 0 + 0 + 1. Slow down, take your time with this. What's that, 1? And it goes underneath? Spot on. And that's how you add decimals! 

 

Here's what I'm expecting you to do - don't forget, ten tenths is the same as a unit! So 14 tenths would be 1 unit and 4 tenths. If you're particularly eagle eyed you'll have spotted that I've done the first one for you.

 

The red questions are adding units and hundredths, experts only I'm afraid:

 

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