Negative Numbers in Real Life micro-lesson
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In this lesson, we will learn to use negative numbers in real life. Negative numbers can be found when we measure temperature. When a temperature measured in Celsius is below freezing, it is a negative number. For example, the temperature could be -3°C. Negative numbers can also be found at the bank. If we borrow money from the bank, we owe them money and therefore have negative amounts of money in our account. If we owe them £5 or $5 depending on where we are, we have -£5 or -$5 in the bank. We also find negative numbers in sport. Goal difference is the difference between the goal the team scores and the amount they let in. If they let in more than they score, they have a negative goal difference. Can you think of any other times you would use negative numbers?
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At which temperature will we always find a negative number?1) Any temperature in celsius, below freezing.2) Any temperature in celsius, above freezing.3) Any temperature in fahrenheit, below freezing.4) Any temperature in fahrenheit, above freezing.
One example of when we might find negative numbers in sport is...1) when finding goal difference (the difference between goals scored and conceded).2) when counting the number of players on the pitch.3) when counting the number of goals scored.4) when working out how much time is left in a match.
In which of these situations are we least likely to see negative numbers?1) When counting the number of chairs in a room.2) When measuring temperature.3) When calculating goal difference.4) When looking at bank accounts.
When would a team have a negative goal difference?1) When they let in more goals than they score.2) When they score more goals than they let in.3) When they score the same amount of goals as they let in.4) It is not possible to have a negative goal difference,
When banking we are most likely to find negative numbers...1) when we owe money to the bank.2) when we have lots of money in our account.3) never.4) when the bank makes a mistake.
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