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Lostsunrise [7]

3 years ago

11

Explain why 138 is divisible by 3

1 answer:

Ludmilka [50]3 years ago

8 0

Divisibility rules will be used in such questions
the divisibility rule for 3 is that you add all the DIGITS in the number.
if the result is divisible by 3 then the number is divisible by 3.
So...
1+3+8 = 12
I know that 12 is divisible by 3 .
so this number is divisible by 3

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