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Questions and Answers
In the example given, what is the difference between 100,000 and 89,234?
In the example given, what is the difference between 100,000 and 89,234?
10,766
To find the profit earned from selling a plot of land, you need to subtract the ______ price from the selling price.
To find the profit earned from selling a plot of land, you need to subtract the ______ price from the selling price.
purchase
What is the correct mathematical operation to use when finding the sum of two numbers?
What is the correct mathematical operation to use when finding the sum of two numbers?
- Addition (correct)
- Subtraction
- Division
- Multiplication
The difference between 10,766 and 89,234 is 100,000.
The difference between 10,766 and 89,234 is 100,000.
A man bought a plot of land for 37,899 and sold it for 45,362. How much profit did he earn?
A man bought a plot of land for 37,899 and sold it for 45,362. How much profit did he earn?
Match the following terms with their corresponding mathematical operation:
Match the following terms with their corresponding mathematical operation:
What is the population of Andaman and Nicobar Islands?
What is the population of Andaman and Nicobar Islands?
Which of the following islands has the largest population based on the given information?
Which of the following islands has the largest population based on the given information?
The population of Daman and Diu is more than the population of Andaman and Nicobar Islands.
The population of Daman and Diu is more than the population of Andaman and Nicobar Islands.
Mr. Sinha earned ______ in one of the years.
Mr. Sinha earned ______ in one of the years.
What is the difference between the largest and smallest 6-digit numbers that can be formed using the digits 2, 5, 0, 7, 6, and 3?
What is the difference between the largest and smallest 6-digit numbers that can be formed using the digits 2, 5, 0, 7, 6, and 3?
What number must be added to 1,79,415 to make three lakhs?
What number must be added to 1,79,415 to make three lakhs?
What is the sum of 89,293 and 3,79,944?
What is the sum of 89,293 and 3,79,944?
Match the following amounts with their corresponding descriptions based on the context:
Match the following amounts with their corresponding descriptions based on the context:
What is the estimated sum of the number of mobile phones in stock?
What is the estimated sum of the number of mobile phones in stock?
The exact number of mobile phones in stock is 140.
The exact number of mobile phones in stock is 140.
An auditorium can seat 417 people. A school wants to show a special film to all the students. How many days will it take for every student to see the film if 1122 students attend each day?
An auditorium can seat 417 people. A school wants to show a special film to all the students. How many days will it take for every student to see the film if 1122 students attend each day?
Piya, the elephant, can eat 623 peanuts in a day. How many days would it take her to eat 4361 peanuts? It would take Piya ______ days.
Piya, the elephant, can eat 623 peanuts in a day. How many days would it take her to eat 4361 peanuts? It would take Piya ______ days.
What is the word problem about?
What is the word problem about?
The problem states that there are ______ bags to be loaded.
The problem states that there are ______ bags to be loaded.
A clown at a circus handed out 224 balloons, and each balloon contained 165 screws. How many screws were handed out in all?
A clown at a circus handed out 224 balloons, and each balloon contained 165 screws. How many screws were handed out in all?
Match the following terms from the content with their corresponding values:
Match the following terms from the content with their corresponding values:
If 87,042 is divided equally among 536 people, there will be no remainder.
If 87,042 is divided equally among 536 people, there will be no remainder.
What is the key calculation involved in determining the number of wagons needed?
What is the key calculation involved in determining the number of wagons needed?
Match the following expressions with their simplified forms:
Match the following expressions with their simplified forms:
The content provides the exact number of bags each wagon can carry.
The content provides the exact number of bags each wagon can carry.
In a factory, 39,600 screws were packed in boxes, each containing 165 screws. ______ boxes were used.
In a factory, 39,600 screws were packed in boxes, each containing 165 screws. ______ boxes were used.
What is the final answer to the word problem?
What is the final answer to the word problem?
The content states that each wagon can carry ______ bags.
The content states that each wagon can carry ______ bags.
What is the primary operation used to solve the problem?
What is the primary operation used to solve the problem?
Flashcards
Required number to reach 1 lakh
Required number to reach 1 lakh
The amount needed to add to 89,234 to make it 1,00,000.
Calculation for profit
Calculation for profit
The difference between selling price and cost price.
Sum of numbers
Sum of numbers
The total obtained by adding two numbers, given that their sum is 48,634.
Finding the missing number
Finding the missing number
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Cost price
Cost price
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Selling price
Selling price
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Auditorium capacity
Auditorium capacity
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Dividing students for a film
Dividing students for a film
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Elephant's peanut intake
Elephant's peanut intake
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Total peanuts eaten
Total peanuts eaten
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Factory screws packed
Factory screws packed
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Leftover from division
Leftover from division
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Estimated total mobile phones
Estimated total mobile phones
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Number of wagons needed
Number of wagons needed
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Basic addition for stock
Basic addition for stock
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Mobile phone inventory
Mobile phone inventory
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Load calculation for bags
Load calculation for bags
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Basic arithmetic operation
Basic arithmetic operation
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Total bags to load
Total bags to load
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Practical estimation
Practical estimation
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Dividing items into transport units
Dividing items into transport units
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Importance of inventory management
Importance of inventory management
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Population of Andaman and Nicobar Islands
Population of Andaman and Nicobar Islands
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Bank Balance Calculation
Bank Balance Calculation
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Estimating Sums
Estimating Sums
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Finding the Difference
Finding the Difference
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Largest and Smallest 6-Digit Number
Largest and Smallest 6-Digit Number
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Two Numbers with a Total
Two Numbers with a Total
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Amount Needed to Reach Total
Amount Needed to Reach Total
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Mobile Phone Stock Estimation
Mobile Phone Stock Estimation
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Study Notes
Exercise 3F
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Example 2: To find the number to add to 89,234 to make 100,000, subtract 89,234 from 100,000 which equals 10,766.
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Profit Calculation: A man bought land for 37,899 and sold it for 45,362. His profit was 7,463.
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Comparison: 98,720 is greater than 89,293 by 9,427.
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Number Sum: If the sum of two numbers is 70,501 and one number is 48,634, the other number is 21,867.
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Population Difference: Andaman & Nicobar Islands has a population of 3,799,944 compared to Daman and Diu’s 2,42,911. The difference is 3,557,033.
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Yearly Earnings: Mr Sinha earned 2,57,360 in two years. If one year's earnings were 1,08,572, then the other year's earnings were 1,48,788.
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Bank Balance: On September 1, Anil had 3,49,500 in his bank account. In November, he withdrew ₹1,19,820, leaving a balance of 2,29,680. Calculating his balance on December 1st requires additional info.
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Target Amount: To get three lakh from 1,79,415, add 1,20,585.
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Combined Number: The total of six lakh forty-nine thousand seven hundred twelve can be divided into parts to calculate the second number, in order to discover the unknown value.
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Difference Comparison: The difference between 90,400 and 50,648 is 39,752 while the difference between 80,312 and 60,185 is 20,127. The difference of the first is 19,625 more than the second calculation.
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Largest/Smallest 6-Digit Numbers: Using the digits 2, 5, 0, 7, 6, 3 to make a largest 6-digit number and smallest 6-digit number then finding the difference.
Estimating Sums and Differences
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Rounding: To estimate sums or differences, round numbers to tens, hundreds, or thousands.
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Example: To estimate the sum of 54 and 93 mobile phones, round 54 to 50 and 93 to 90. The estimate is 140.
Other Exercises
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Bags of Cement: 239 cement bags can fill one wagon. To load 8365 bags, 35 wagons are needed.
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Auditorium Capacity: An auditorium holding 417 people can accommodate a given number of students for a film showing, on a per day basis. Finding the total number of days needed to accommodate all students is required.
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Elephant Peanuts: An elephant, eating 623 peanuts in a day will take 7 days if it must consume 4361 peanuts.
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Clown Balloons: With 153 balloons each, or with 1,224 total balloons, there are 8 clowns.
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Factory Screws: 39,600 screws are in boxes of 165 screws per box, which means 240 boxes are used.
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Money Distribution: A sum of 87,042 is to be distributed between 536 persons evenly. Each person will get 162 rupees per person. there would be a remainder of 530.
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