NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 1: Number System - True or False Questions
Question 54

Question. 54

Among kilo, milli and centi, the smallest is centi.

Answer:

false

Detailed Answer with Explanation:

Step 1: Know what each prefix means

kilo means \(10^{3}\) (that is, 1000 times bigger).

centi means \(10^{-2}\) (that is, one-hundredth).

milli means \(10^{-3}\) (that is, one-thousandth).

Step 2: Compare how small they are

Smaller size means a smaller value (more negative power of 10).

\(10^{-3} < 10^{-2} < 10^{3}\)

Step 3: Say it in words

milli (\(10^{-3}\)) is smaller than centi (\(10^{-2}\)).

Step 4: One more way to see it

\(1\) unit = \(100\) centi-units (because \(10^{2} = 100\)).

\(1\) unit = \(1000\) milli-units (because \(10^{3} = 1000\)).

Needing more parts (1000) means each part (milli) is smaller than a centi-part.

Conclusion: The statement is false. The smallest is milli, not centi.

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 1: Number System – True or False Questions | Detailed Answers