Which are the places in one’s period (when numbers are represented in the international system) ?

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Ones and tens

Ones, tens, and hundreds

Ones

Ones, tens, hundreds, and thousands

answer is B.

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Detailed Solution

Concept: Each period's numerals are read as a three-digit number. There are different time periods, such as ones, thousands, and millions.
All of the periods have three place values in the international system of numeration. Because each period has three place values, we must use a comma after each and every three digits from the right to write a number using comma(s) .
We are questioned about places from our time period. Because it is the first period, we have ones, tens, and hundreds starting from the right.
Hence, the correct answer is option (2) .

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