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Jack buys one and a half kilograms of potatoes and half a kilogram of carrots.
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How much change does he get from five pounds?
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We know that one kilogram of potatoes is one pound 50.
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And Jack buys one and a half kilograms of potatoes.
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Half of a kilogram of potatoes will cost half of one pound 50.
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One pound 50 is 150 pence.
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So what is half of 150?
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Half of 100 is 50, and half of 50 is 25.
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So half a kilogram of potatoes costs 75 pence.
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One pound 50 plus 75 equals two pounds 25.
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Jack also buys half a kilogram of carrots.
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We know that one kilogram costs one pound 80 or 180 pence.
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Half of 180 is 90.
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Next, we need to add together the cost of the potatoes and the carrots.
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And then we have to work out how much change Jack would get from his five-pound note.
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Two pound 25 and 90 pence costs three pounds 15.
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One and a half kilograms of potatoes and half a kilogram of carrots costs three pounds 15.
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How much change would Jack get from his five-pound notes if he paid three pounds and 15 pence?
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85 and 15 are a pair of numbers that make 100.
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So if we add 85 pence to three pounds 15, that will take us to four pounds.
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Four and one makes five.
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So we know that three pounds 15 and one pounds 85 totals five pounds.
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So Jack will get one pound 85 in change from his five pounds.
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To find the answer, first we calculated the cost of one and a half kilograms of potatoes, which was two pounds 25.
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Then we calculated the cost of half a kilogram of carrots, which was 90 pence.
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Then we added these two amounts together to tell us the total amount that Jack has spent.
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Then we found the difference between three pounds 15 and five pounds to give us the amount of change that jack should get.
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He will get one pound 85 in change from his five-pound note.