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Whole Numbers (Pri-6)

/ Whole Numbers Nanyang Primary School / CA1 (2019)
Questions 21 to 30 carry 2 marks each. Show your working clearly and write your answers in the spaces provided. For questions which require units, give your answers in the units stated. (20 marks) 21At first, Josh and May had some marbles each. After Josh gaveof 4 his marbles to May. May had 3 times as many marbles as him. May then gave Josh 12 marbles. In the end, each of them had an equal number of marbles. How many marbles did May have at first?
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January 27, 2019
 
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(refer to model)After may gave Josh 12 marbles, they have equal number of marbles:u =12Green part = 12 ÷ 3= 4---May original = 3 u - 4 = 3 ( 12 ) - 4= 32  marbles  (ans)
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January 28, 2019
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