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957 ÷ 3

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957 ÷ 3

319

Notice that 57 ÷ 3 = (60 - 3) ÷ 3 = 20 - 1 = 19. Now, we can treat the hundreds digit separately from the others. 957 ÷ 3 = (900 + 57) ÷ 3 = 300 + 19 = 319.

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