WEBVTT
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Find the equation that answers this problem.
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Today, Hannah is 37 years old and William is 61 years old.
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How old was William 23 years ago?
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We’re given information in the question about Hannah and William’s ages.
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We know that today Hannah is 37 years old.
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And William is 61 years old.
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We need to work out how old William was 23 years ago.
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As William is currently 61, this is our start point.
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23 years ago, he would be 23 years younger.
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So we need to subtract 23.
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The calculation that will work out William’s age 23 years ago is 61 minus 23.
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We could work out this answer in several ways.
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One way would be to subtract 20 and then subtract three.
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61 minus 20 is equal to 41.
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41 minus three is equal to 38.
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This means that 61 minus 23 equals 38.
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This is the equation that answers the problem of working out William’s age 23 years ago.