923 - 587 =
13 + 587 = 600
923 - 600 = 323 + 13 = 336
This is the problem for today. I learnt how to solve the problem by tiding it up, so it goes 923 - 587 so I add 13 to 587 to make it even which made up to 600. Then I subtract 923 from 600 and it equaled to 323, Then added 13 by 323 which equals to 336 and that's how you get your answer.
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