Introduction: Decimal

Q. Arrange the following in increasing order:

0.1, 0.9, 0.5, 0.7

1. 0.7< 0.5< 0.1< 0.9
2. 0.1 <0.5 <0.7 <0.9
3. 0.5 <0.1 <0.7 <0.9
4. 0.9 <0.5 <0.1 <0.7

Q.

Find the sum.

$10.1+\frac{1001}{100}+\frac{10001}{1000}+\frac{100001}{10000}$

1. 4.1111

2. 400.1111

3. 40.1111

4. 1111.1111

Q.

Question 108

Fill in the blank to make the statement true.
By adding 1 to the greatest .............. digit number, we get ten lakh.

Q. The distance between Anshul's office and his house is 5.5 km. One day he went walking to office. While coming back, he walked for 2km and then took a cab. Find the total distance walked by Anshul in meters. [4 MARKS]

Q. If it has rained $276$cm in the last $3$ days, how many cm of rain will fall in one week?Assume that the rain continues to fall at the same rate.

Q. If $\sqrt{2}=1.41\mathrm{and}\sqrt{5}=2.24$, find the value of $\frac{3}{\left(8\sqrt{2}+5\sqrt{5}\right)}+\frac{2}{\left(8\sqrt{2}-5\sqrt{5}\right)}$.

Q.

Without using calculating devices, compute the following correct to two decimals.

(i)

(ii)

(iii)

Q. $\frac{2^{16}}{100}$ is value

1. 1
2. 2
3. Not
4. 0

Q. Find to five places of decimals the value of :
$\frac{1}{\sqrt[3]{3128}}$

Q.

Choose an appropriate option and fill in the blanks:

$15.001kg=..........g\left[1501/15001\right]$

Q.

Purav covers $17.25$ km in $1.5$ hours on his bicycle. Find how many kilometres is covered in $1$ hour by Purav.

Q.

Convert the following into decimals and find the sum rounded up to $2$ decimal places.

$\frac{1}{2}$, $\frac{5}{2}$, $\frac{4}{9}$, $\frac{5}{20}$, $\frac{3}{10}$, $\frac{7}{100}$, $\frac{100}{2}$, $\frac{100000}{10000000}$, $\frac{12}{48}$, $\frac{9}{99}$, $\frac{5}{25}$
Ans: ___

Q. Find to five places of decimals the value of :
$\sqrt[5]{53128}$

Q.

Choose an appropriate option and fill in the blanks:

$........\mathrm{g}=0.02\mathrm{kg}$ $\left[200/20\right]$