Multiplication methods - class-IX
Description: multiplication methods | |
Number of Questions: 121 | |
Created by: Vinaya Modi | |
Tags: calculations and mental strategies 4 mental skills natural numbers four operations ways to multiply and divide playing with numbers real numbers (rational and irrational numbers) maths number world numbers : revision calculations and mental strategies 2 |
Division of numbers is performed when we ________ certain quantities.
The product of two consecutive natural numbers is always ________.
A tyre factory produces $6348$ tyres a day. How many tyres will the factory produce in $460$ days?
The unit's digit in the product $274 \times 318 \times 577 \times 313$ is:
$1089$ is divisible by ________
Find the value of $(-1)\times (-1)\times (-1)....1001\ times$
Total number of divisor of $N$, which are divisible by $15$ but not by $36$ are
Product of $7,986$ and $548$ is
Place value of a digit increases by ______ times as it moves place by place from right to left.
156 $\times$ ____ = 0
$(32) \times (-4) \times (-3) \times 0 \times (-6) $ is equal to
Find the value of $x$.
$\displaystyle \left ( -\frac {1}{4} \right )^{-3} \times \left ( \frac {1}{4} \right )^{4} \div 4^{-2}=-(4^{10x+1})$
The average age of a family of 6 members 4 years ago was 25 years. Meanwhile a child was born in this family and still the average age of the whole family is same today. The present age of child is ......
Solve 45 % of 1500 + 35 % of 1700 = ? % of 3175
$102 \times 103$
A pineapple costs rs. 7. A watermelon cots rs. 5. X spends rs. 38 on these fruits. The number of pineapples purchased is _______.
If x is a whole number then $\displaystyle x^{2}\left ( x^{2}-1 \right )$ is always divisible by
Suresh travelled 1200 km by air which form (2/5) of his trip. One third of the whole trip, he travelled by car and the rest of the journey he performed by train. Find the distance travelled by train. Also, find the speed of the train if the time taken for the train to travel the whole distance is 8 hrs
Three lightships flash simultaneously at 6;00 a.m. The first lightship flashes every 12 seconds, the seconds lightship every 30 seconds and the third lightship every 66 seconds. At what time will the three lightships next flash together?
If $\displaystyle \left ( 1^{2}+2^{2}+3^{2}+...+10^{2} \right )=385$ then the value of $\displaystyle \left ( 2^{2}+4^{2}+6^{2}+...+20^{2} \right )$
When Sholey screened on the TV there was a commercial break of 5 min after every 15 min of the movie If from the start of the movie to the end of the movie there was in all 60 min of commercials that was screened what is the duration the movie?
If $\frac {2}{3}$ part of a number is 96 then what will be $\frac {3}{4}$ of the same number?
Simplify $(9^{4/3} \div 27^{2/3}) \times 3^{3/2}$
The number of non-negative integers that are less than 1000 and end with only one zero is
What is the value of $\displaystyle\frac{0.24\times0.35}{0.02\times0.14\times0.15}$
The product of two numbers is 0.008 and one is $\displaystyle \frac{1}{5}$ of the other, then the smaller number is
On dividing 4996 by a certain number the quotient is 62 and the the remainder is 36 what is the divisor ?
A boy was asked to multiply a certain number by 25 He multiplied it by 52 and got his answer more by 324 than the correct answer The number to be multiplied was
Divide 57,804 by 46. Then
$\displaystyle 178\times \quad ....... = 0 $
Product of 7,986 is 548 is
14 apples cost Rs. 140 The cost of 1 apple is___
Suman quickly estimated the product of $796\times 19$ in the following manner. He rounded each number to the nearest ten.
He multiplied these new numbers together.
What was Suman's estimate?
Which of the following is divisible by $11$?
Add the $4^{th}$ multiple of 52 and the $8^{th}$ multiple of 37. The value obtained is 700 less than $\clubsuit$. Find $\clubsuit$.
Farmer Gopal packed an equal number of oranges into each of the 15 baskets. If each basket contained 85 oranges, how many oranges did he pack ?
If O represents 5 eggs then how many eggs does OOOO represent?
In a school, there are 704 desks to place into 22 classrooms. If the same number of desks is placed in each classroom, how many desks will be there in each room ?
The numbers $35, 7035, 385$ is divisible by
$1\displaystyle \div 28$ is ___
64 $\displaystyle \div $ 1 is ____
238 $\displaystyle \div $ 238 is ____
$(98 + 14) \displaystyle \times $ 0 is _____
The property satisfied by the division of whole number is
One symbol represents 5 ballons then number of symbols to be drawn to represent 60 ballons is
The unit's digit in the product 274 x 318 x 577 x 313 is :
Solve $ 7.86 \times 4.6 =$
$3897\times 999=$?
$34\times 56= ?$
Divide : $16974\div 23\div 2$
Evaluate:$12340\times 23=$
$12\times 4356= ?$
Evaluate: $234\times 0$
Divide : $0\div 23329$
Which of the following is NOT true?
Which of the following options is correct?
Statement 1: If $7$ friends divide $76895$ coloured beads amongst themselves, then each will get $10984$ coloured beads
Statement 2: If $16$ families went on a trip and pay Rs. $216352$ in total, then each family will pay Rs. $13522$.
A generator consumes 2.875 litres of diesel per hour.The quantity of diesel required to run the generator for 24 hours is ______ .
What is the number in the START box?
$\boxed { START } \rightarrow \boxed { \div 16 } \rightarrow \boxed { \times 20 } \rightarrow \boxed { 132820 } $
A machine produces $2800$ screws in a day. Which of the following is the best estimate of the number of screws produced in 2 days?
$Table - I$
Name of City | No. of Govt. employees |
---|---|
Delhi | 4200 |
Mumbai | 3600 |
Chennai | 3000 |
$Table - II$
Name of City | No. of Govt. employees |
---|---|
Delhi | $\Box \quad \Box \quad \Box \quad \Box \quad \Box \quad \Box \quad \Box$ |
Chennai | $\Box \quad \Box \quad \Box \quad \Box \quad \Box \quad \Box$ |
Mumbai | $\Box \quad \Box \quad \Box \quad \Box \quad \Box \quad $ |
$6\times 3(3-1)$ is equal to
Teacher is taking some children on a school trip to the zoo. There are $8$ childrens and $3$ adults. Each children's ticket cost is Rs. $12$ and each adult's ticket cost is rs. $24$. How much will the trip cost?
$470988$ books are to be arranged equally in shelves. If $378$ books are arranged in each shelf, how many shelves will be needed?
Repeated addition of same number is called _________.
In the correctly worked out multiplication problem at the below, each letter represent a different digit. What is the value of B ?
A A
A B
B B
A A C
A 3 B
If $ \spadesuit \spadesuit \spadesuit = 18$, then $\spadesuit \spadesuit \spadesuit \spadesuit \spadesuit =$ ________.
Find the least number in which multiplied by $1800$ given a perfect cube, then find the sum of the digits of that number.
The sum of all three-digit natural numbers which leave a remainder $2$ when divided by $3$
Given $n =1 + x$ and x is the product of four consecutive integers. Then which of the following is true?
Kunal has only $25$ paise and $50$ paise coins with him. The total amount in $50$ paise denomination is $Rs. 4$ more that the total amount in $25$ paise denomination. The number of $25$ paise coins is $20$ more than the number of $50$ paise coins. What is the total amount with Kunal?
The sum of all natural members which multiples of $7$ or $3$ or both and lie between $200$ and $500$ is
A number when divided by $14$ leaves a remainder of $8$, but when the same number is divided by $7$, it will leave the remainder ?
The sum of all two digit numbers which when divided by 4 , yield unity as remainder is
A rectangular cortyard $3.78$ metres long and $5.25$ metres wide is to be paved exactly with square tiles, all of the same size. Then the largest size of the tile which could be used for the purpose is $(n\times 3)\ cm$, then $n$ is equal to
$\dfrac{20}{100}\times 1,70000=20\times 1700=34,000$
A train running at the speed of 60$\mathrm { km } / \mathrm { hr }$ crosses a pole in 9 seconds. What is the length of the train
The quotient when $1 + x ^ { 2 } + x ^ { 4 } + x ^ { 6 } + \dots + x ^ { 34 }$ is divided by $1 + x + x ^ { 2 } + x ^ { 3 } + \dots + x ^ { 17 }$ is
What should be multiplied by $-23$ to get $575$?
The number of positive n in the range $12\le n\le 40$ such that the product (n -1) (n -2).... 3.2.1 is not divisible by n is :
The value of $4 \times 378 \times 25$ is
The value of $47 \times 99$ is:
Mark the correct alternative of the following.
The product of a whole number(other than zero) and its successor is?
Mark the correct alternative of the following.
The product of the predecessor and successor of an odd natural number is always divisible by?
6(7 x 3) = (6 x 7) x 3 is an example of
(98 + 14) x 0 is ________
What number should replaced M in This multiplication problem ?
$\displaystyle \frac{4}{\underline {1\, 2\, 1\, 6}}$
Which of the following property is not applicable to addition of whole numbers?
On dividing 55,390 by 299 the remainder is 75. The quotient is
72 $\times $ b = 4572a then the value of a + b is (where a is a single digit whole number and b is a natural number)
Which natural number is nearest to $9217$, which is completely divisible by $88$ ?
Find the value of A and B in the following sum:
$3 B$
$\underline {\times A}$
$\underline {2 5 2}$
The least number which on division by 35 leaves a remainder 25 and on division by 45 leaves the remainder 35 and on division by 55 leaves the remainder of 45 is
An integer is multiplied by 2 and the result is then multiplied by 5 The final result could be
If $\displaystyle a=(2^{-2}-2^{-3}),b=(2^{-3}-2^{-4})and: c=(2^{-4}-2^{-2})$ then find the value of 3 abc
Simplify : $\displaystyle\frac{9^{5/2}-3\times7^0-\begin{pmatrix}\displaystyle\frac{1}{81}\end{pmatrix}^{-\displaystyle\frac{1}{2}}}{(27)^{2/3}-\begin{pmatrix}\displaystyle\frac{8}{27}\end{pmatrix}^{2/3}}$
If $\div$ means $-$, $-$ means $\times$, $\times$ means $+$ and $+$ means $\div$, then
$20\times 60\div 40-20+10=$
If $\displaystyle 15\frac {2}{3}\times 3\frac {1}{6}+6\frac {1}{3}=11\frac {7}{18}+x$, then the value of $x$ is ______ .
There were $50$ people at the birthday party. John invited $125$ people. Among those who attended, only $36\%$ brought gifts. How many guests brought gifts?
The value of $\displaystyle\frac{2^{n+4}-2\times2^{n}}{2\times2^{(n+3)}}+2^{-3}$ is equal to ...........
Tony needs to solve the equation given below.
$\displaystyle \frac {3}{4}t=\frac {6}{20}$
What operation should Tony perform to solve the equation for $t$ ?
A cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him till the last match was........
If $4m = 5K$ and $6n = 7K$, the ratio of $m$ to $n$ is
Multiply: $(3 i)(4 + 3i)(5 2i)$
Find : $43245\times 0$
Which of the following statements do not accurately describe the multiplicative inverse ?
Find : $5436\times 1$.
Simplified value of $769\times 43$ is
Divide : $87537\div 1$
Multiply : $44\times 567\times 1$
$21774\div 19\div 3$ is equal to
What is the multiplicative inverse of $3-\sqrt8$ ?
If $4\times 5=1625$, $3\times 8=964$, $4\times 6=436$ then $1\times 9=?$
The sum of all two digit numbers which when divided by $4$, yield unity as reminder is
The value of $\dfrac{(469 +174)^2 - (469-174)^2}{469 \times 174}$ is
The smallest number which must be added to $803642$ in order to obtain is multiple of $9$ is
Choose the correct answer from the alternatives given.
In a mixture of $35$ litres, the ratio of milk and water is $4: 1$. How many litres of water must be added to make the ratio $2 : 3$?
What is the average of all numbers between $11$ and $80$ which are divisible by $6$?
What is the remainder when $6729$ is divided by $35$?
The estimated product of $15289$ and $587$ is
Find the value of $\displaystyle\left(\frac{P+Q}{R}\right)\times S$.
(i) $100$ lakhs $=$ _________[Q] millions
(ii) ____[R] crores $=100$ millions
(iii) $100$ thousands $=$ ___[P] lakhs
(iv) $10$ crores $=$ _______[S] millions.