Introduction: Decimal

Q.

Write the following in the expanded notation

$99.999$

Q.

Write the given number in the expanded form:

$347.39$

Q.

Which of the following decimals is a like decimal of $3.49$ ?

1. $4.98$

2. $2.305$

3. $1.094$

4. $3.499$

Q.

Simplify: $2.4+3.62-0.6$

Q.

Divide

$39.36by3000$

Q. $\frac{23.5}{0.5}$ =

1. 45
2. 47
3. 23

Q.

The value of the fraction $9\frac{13}{20}$ as a decimal?

Q. Find the value of the following determinant :

(i) $\left|\begin{array}{cc}5& 2\\ 7& 4\end{array}\right|$

(ii) $\left|\begin{array}{cc}-3& 8\\ 6& 0\end{array}\right|$

(iii) $\left|\begin{array}{cc}1.2& 0.03\\ 0.57& -0.23\end{array}\right|$

(iv) $\left|\begin{array}{cc}3\sqrt{6}& -4\sqrt{2}\\ 5\sqrt{3}& 2\end{array}\right|$

(v) $\left|\begin{array}{cc}\frac{-4}{7}& \frac{-6}{35}\\ 5& \frac{-2}{5}\end{array}\right|$

Q.

Multiply the decimal numbers.

$1.1\times 3.0$

Q.

Multiply the decimals.

$2.6\times 12.3$

Q.

Multiply the decimal numbers.

$27.15\times 3.7$