WEBVTT
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Fill in the blank: three groups of eight equals something.
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Let’s sketch a bar model to help us understand what this question is asking us.
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We have three groups.
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So we can represent this by drawing three sections to our bar.
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We’re told that there are three groups of eight.
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So we could show this by writing the number eight in each of our sections.
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Well, the blank that we need to fill in is the total of three groups of eight.
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So how can we find this total?
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What can we do to find three groups of eight?
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Well, there are two ways to find the answer.
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The first is to use addition.
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We could find the answer to eight plus eight plus eight.
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That would be the same as three groups of eight.
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The second method, which is a little bit quicker, is to use multiplication.
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We could find the answer to three multiplied by eight or eight multiplied by three to find three groups of eight.
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As it is slightly quicker, let’s use this method.
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Perhaps, you know the multiplication factor already.
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But if not, let’s count in eights to find the answer.
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One group of eight or one multiplied by eight is eight.
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Two eights are 16.
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And three eights are 24.
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And so the missing number is 24.
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Three groups of eight equals 24.