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Question

Using shorter method, find (1) 3246 + 9999 (2) 7501 + 99999

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Solution

1) 3246 + 9999 = 3246 + (10,000 – 1)
= 13246 – 1
= 13245
2) 7501 + 99999 = 7501 + 100000 – 1
= 107501 – 1
= 107500

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