Tutor May Ho, Ex MOE Trained's answer to Cwa's Primary 6 Maths Algebra Singapore question.
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Hope that you could understand. Study the difference between the patterns for shaded. It is difference of 4, so it is multiple of 4. For unshaded circles with '1, 4, 9' give clue that the number of unshaded circles are Square numbers. If you add up the shaded and unshaded circles, the total is also made up of square numbers.
Date Posted:
3 years ago
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