Question

Do the numbers $2,021$ and $20.21$ have the same value?

• A. Yes
• B. No
• C. Cannot say

Answer 1

The correct option is B No

Let's understand number $2,021$ by place value chart.

From place chart
Th $=2$
Place value $=2\times 1,000=2,000$
H $=0$
Place value $=0\times 100=0$
T $=2$
Place value $=2\times 10=20$
O $=1$
Place value $=1\times 1=1$

Notw, let's understand place value chart of $20.21$


From the place value chart,
T $=2$
Place value $=2\times 10=20$
O $=0$
Place value $=0\times 1=0$
t $=2$
Place value $=2\times \frac{1}{10}=\frac{2}{10}=0.2$
h $=1$
Place value $=1\times \frac{1}{100}=\frac{1}{100}=0.01$

So, from the place value, it is clear that both numbers are not the same. Hence decimal point has made a big difference in their values.