WEBVTT
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A person cycled 73.33 metres in a hundred seconds.
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How many metres did that person cycle in one second?
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In this problem, we’re given some information about somebody riding their bike.
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We’re told the distance that they travelled and also the time it took them.
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They travelled 73.33 metres.
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And this took him 100 seconds.
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We need to use the information that we’ve been given to calculate the number of metres that the person cycled in one second.
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To calculate the answer, we need to find one hundredth of the distance that they travelled which is 73.33 metres.
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And to find one hundredth of a number, we need to divide it by 100.
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At that moment our number has seven tens, three ones, three tenths, and three hundredths.
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And when we divide any number by one hundred the digits shift two places to the right.
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So they move two columns to the right.
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So instead of being worth seven tens, the number seven is now worth seven tenths.
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And our three ones also shift two columns too.
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Instead of being worth three ones, there now worth three hundredths.
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Three tenths are now worth three thousandths.
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And the digit in the hundredth column shifts to the ten thousandth column.
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To show what all these digits are, we need to make sure we included decimal point and zero as a place holder.
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That way we can see where all the decimal places are.
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We needed to solve the problem.
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We had to find one hundredth of 73.33 metres.
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We also remembered that when we divide any number by 100, the digits shift two places to the right.
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So we used a place value grid to help us.
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The number of metres that the cycle is travelled in one second was 0.7333 metres which is just over 73 centimetres.