Question

What is the correct decimal number when the largest four-digit number is divided by 100?

• A. 9.999
• B. 99.90
• C. 99.99
• D. 999.90

Answer 1

The correct option is C 99.99

$\text{The largest four digit number}=9999$
To convert $\frac{9999}{100}$ into a decimal, we have to divide 9999 by 100

$\text{To divide}:\frac{9999}{100}$
$\Rightarrow$ Write the numerator as 9999.0

$\Rightarrow$ Denominator have two zeros (100), hence shift the decimal point two places to the left in 9999.0 (numerator)

	Ten thousands	thousands	hundreds	ones	.	tenths	hundreds
	9	9	9	9	.	0
$÷$100			9	9	.	9	9

$\Rightarrow \frac{9999}{100}=\frac{9999.0}{100}=99.99$