Question 4 :
Estimated sum of $7826$ and $12469$ rounded off to hundreds is $20,000$.
Question 9 :
Number of boys in a class are $27$ and the girls are $19$. Write the total strength(in roman number) of the class.
Question 10 :
The number of matchsticks that can be used to write 39 in roman system are:
Question 11 :
Estimate $358 \times 326$ by rounding numbers to the nearest Hundreds.<br>
Question 12 :
Suman did a multiplication sum of $104 \times  25$ and got the answer. She suddenly realised that the question written on the blackboard was $104 \times $ $52$. So, what will be the difference between her answer and the required answer?
Question 13 :
Form the greatest and smallest numbers using the digits $5, 2, 9, 7$ ( each digit used only once). What is the difference between the two numbers formed?
Question 15 :
Which of the following statements is/are INCORRECT?<br>(i) Eighty four in Roman numeral is written as $CXXXIV$<br>(i) There are seven zeroes in $1$ crore.<br>(iii) There are ten thousand milligrams in $1kg$<br>(iv) The smallest $4$-digit number formed by using all the digits $4,3,0,8$ without repetition is $3048$
Question 18 :
If $I=\cfrac { 3 }{ 4 } \div \cfrac { 5 }{ 6 } ,II=3\div \left[ (4\div 5)\div 6 \right] ,III=\left[ 3\div (4\div 5) \right] \div 6,IV=3\div 4(5\div 6)$, then which of the following are equal?
Question 20 :
Raghu is 21 years old and Kavitha is 22 years old Write the sum of their ages in Roman system
Question 25 :
If $\displaystyle\frac{-9}{5}=\frac{a}{20}=\frac{27}{b}=\frac{-45}{c}$, then values of a, b and c respectively are __________.
Question 27 :
The product $\left ( 1 -\frac{1}{n} \right )\left ( 1-\frac{1}{n+1} \right )\left ( 1-\frac{1}{n+2} \right )...\left ( 1-\frac{1}{2n} \right )$ equals<br>
Question 28 :
If $a, b, c, d$ are first four positive odd integers, then their sum is 
Question 29 :
The time shown when the long hand is at 12 and short hand is at 11 it
Question 32 :
Mary bought a pizza. She gave $\dfrac {1}{8}$ of the pizza to each of her five children. What fraction of the pizza is left with her?<br>
Question 33 :
The time shown when the long hand is at 12 and short hand is at 11 is
Question 34 :
Which pair of numbers does not have a product equal to $36$?
Question 36 :
Find the part of each of the following numbers equal to $20$.
Question 37 :
When two numbers are added then the number you get is called _______.
Question 39 :
If $\Uparrow$ represents 5 houses, then the number of houses represented by $\Uparrow \Uparrow \Uparrow \Uparrow$ are<br>
Question 40 :
If the sum and the product of two numbers are 25 and 144 respectively, then the difference of the numbers must be<br>
Question 42 :
Sumit scored $CDLXXXII$ marks in the annual examination. What is the Hindu-Arabic number for this Roman Number?
Question 43 :
The monthly salary of a man is $ 2,200$. Calculate his annual income by salary.
Question 44 :
A number when divided successively by $4$ and $5$ leaves remainders $1$ and $4$ respectively. When it is successively divided by $5$ and $4$, then the respective remainders will be
Question 45 :
Bobby's date of birth is $19^{th}$ September. Express the date in Roman system.
Question 48 :
$\cfrac { 1 }{ 30 } +\cfrac { 1 }{ 42 } +\cfrac { 1 }{ 56 } +\cfrac { 1 }{ 72 } +\cfrac { 1 }{ 90 } +\cfrac { 1 }{ 110 } $ is equal to : __.