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83

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chan zi yang

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Make a list

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Hint: Let a be the hours that George rode
Distance = speed x time

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Hint: Use Algebra to solve

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Hint: Find out the time taken per kilometer to compare

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Hint: Start with one coin of each type
5+10+50=65 cents

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Hint: Look from all 6 directions

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Hint: The cubes with 3 faces painted are at the corner

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Hint: Volume of oil in the tank = LxBxH

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Hint: Look from 6 different directions

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Hint: Refer to Example 1

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Hint: Look at the area from each facing - North, South, East, West, Top and Bottom

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Hint: Eliminate those not Benjamin's siblings first

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Hint: List the multiplication of 9 first

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Hint: Do the operations multiplication and Division first

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Hint: find the sum of 9 numbers since there are 9 cirlces, then find the sum of numbers in each straight line

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Hint : Assume all marbles weigh 1g

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Answer (Name)

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Hint: Assume all to be one denomination

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Answer (Name)

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Answer (Name)

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Wherer is qi?

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Hint: Shaded triangle is half of the area of square

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Hint: Use Pythagoras' Theorem in Example 2

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Hint: Need to identify base and height of triangle.

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Post questions you may have on lessons 1,2,3 at 'Add Comment'. Include your name at the end of your question.

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Post questions you may have on lessons 1,2,3 at 'Add Comment'. Include your name at the end of your question.

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Answer (Name)

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Students, please use 'Add comment' to post your answer (Name) by Question number.

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Students, please use 'Add comment' to post your answer (Name) by Question number.