Question Video: Determining Whether Numbers up to 20 Are Even or Odd | Nagwa Question Video: Determining Whether Numbers up to 20 Are Even or Odd | Nagwa

# Question Video: Determining Whether Numbers up to 20 Are Even or Odd Mathematics • Second Year of Primary School

Is 13 even or odd?

01:29

### Video Transcript

Is 13 even or odd?

In this question, we have to decide if the number 13 is even or odd. We can model the number 13 using some 10 frames. 10 and three more makes 13. To help us decide if this is an odd or even number, we could see if we can make pairs of counters. If we can, we know that 13 is an even number. If not, and as a counter left over, we know 13 is an odd number.

So, let’s see if we can make pairs. Here’s one, here’s another pair, here’s another pair, and two more pairs. So far, we’ve been able to divide our 10 counters into five pairs. So, we know that 10 is an even number. Another pair makes 12. And we’ve got one counter left over. So, we can’t make this into a pair. So, the number 13 is an odd number. We modeled the number using 10 frames and then we make pairs of counters. There was one counter left over. So, we know that 13 is an odd number.

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