Question Video: Reading and Writing 17 By Counting Items among Sets | Nagwa Question Video: Reading and Writing 17 By Counting Items among Sets | Nagwa

# Question Video: Reading and Writing 17 By Counting Items among Sets Mathematics • First Year of Primary School

Are there 17 balloons?

02:19

### Video Transcript

Are there 17 balloons?

In the picture, we can see some red balloons, and our question asks about them. Did you notice there was a number in our question? We write this number as a one followed by a seven. And do you remember how to say this number? You may have heard it said in the question, if you’re listening carefully. It’s the number 17. And our question asks us, is this how many balloons there are? Are there 17 balloons? The answer to this question is either going to be yes or no. And there’s only one way to find out. We need to count them. Now what do you notice about the way these balloons have been shown? They’re inside two ten frames, aren’t they?

And if we look carefully at the first ten frame, we can see that it’s completely full. There are no gaps in our first ten frame. This means it looks like there are 10 balloons in there. Should we count them? One, two, three, four, five, six, seven, eight, nine, 10. We were right. A full ten frame means 10 balloons. Now how many more than 10 can we see? In the second ten frame, there are another one, two, three, four, five, six balloons. This is interesting because we’re looking for 17 altogether, aren’t we? And one thing we know about the number 17 is that it’s seven more than 10. But we’ve just counted six more balloons than 10. It looks like we might not have 17 balloons. So far, we’ve got as far as 10.

So let’s say 10 and then carry on counting for our six more balloons and see how far we get. So we’ll start with 10 and then 11, 12, 13, 14, 15, 16. Six more than 10 is 16 not 17. So when we’re asked, are there 17 balloons, we can say, no.

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