1.

Fill in the blanks to make the statement true.20 × 3 is a multiple of 3 if the digit x is ______ or ______ or ______.

Answer»

1 or 4 or 7

Explanation:

It is known that, when a number is a multiple of 3, if the sum of digits in the number is a multiple of 3

By equating the closet multiple of 3 such as 6, 9, and 12, we get the digit

Either the digit x should be 1 or 4 or 7.



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