Video: Adding Different Notes to Find the Total Amount of Money

Look at these two groups of money. (a) How much is there in group A? (b) How much is there in group B? (c) How much is there in total in groups A and B?

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Video Transcript

Look at these two groups of money: group A and group B. How much is there in group A? How much is there in group B? How much is there in total in groups A and B?

This is a three-part question. First, we have to find out how much money there is in group A. Then we need to work out how much money there is in group B. And then we need to find the total amount of money in groups A and B. Let’s start by adding the money in group A. We’ve got two 10-pound notes and two one-pound coins. Let’s count forward using our number line to help. We can add one 10-pound note, which gives us 10 pounds, and 10 more makes 20. And now we just need to add our two pound coins. Two more than 20 is 22. So the total amount of money in group A is 22 LE. 10 and 10 is 20, and two more makes 22.

Now let’s find out how much money there is in group B. We’ve got two five-pound notes, so let’s count forward in fives twice: five, 10. And now we need to add our four one-pound coins. We know that four lots of one is four. One plus one is two, and one more makes three, and another makes four. So let’s start at 10 and count forward four more. We know that four more than 10 is 14, so the total amount of money in group B is 14 LE.

Now we need to add together the total of group A and the total of group B, so we need to add 22 and 14. So let’s start at 22. We can count forward 10, which takes us to 32, and four more, because 14 is 10 and four. What is four more than 32? It’s 36. The total amount of money in group A is 22 LE. The total amount of money in group B is 14 LE. And 14 and 22 gives us an overall total of 36 LE.

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