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Solve it without calculators

Number Theory Level 1

How many numbers below is/are divisible by 9?

A. 108

B. 616

C. 294

D. 432

E. 927

Strongly recommended: Don't use a calculator.

2 4 3 0 5 1

Excel in math and science

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It's hard to learn from lectures and videos

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by Munem Sahariar

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