The Fish Tale: Math Problems

Chapter 1: The Fish Tale - Study Notes

• Practice multiplication and division problems.
• A log boat travels 6 km in one hour.
• To determine how long the log boat will take to travel 54 km, find out distance / speed.
• To determine the distance the log boat will travel in four and a half hours, find speed * time.
• One crore equals a certain number of lakhs, calculate this.
• Determine the smallest 8-digit number that contains five different digits.
• A boat travels at a speed of 22 km per hour.
• To determine how far the boat will travel in two and a half hours, find speed * time.
• John purchased 4500 kg of fresh fish for Rs. 50 per kg.
• John spent Rs. 8000 on salt and transport.
• After one month, John sold the dry fish for Rs. 200 per kg.
• Note that 3 kg of fresh fish yields 1 kg of dry fish.
• Calculate John's gain or loss after selling the dried fish.
• Suyash borrowed Rs. 30450 from a bank and repays Rs. 3540 per month for a year.
• Calculate the total amount Suyash will pay back to the bank.
• Calculate the total interest Suyash will pay.
• Anushka buys 9000 kg of potatoes for Rs. 15 per kg and dries them for chips.
• One third of the potatoes become chips.
• Anushka sells the chips for Rs. 70 per kg.
• Calculate Anushka's total profit.
• Twenty fisherwomen opened a bank, with each saving Rs. 30 per month.
• Determine the total amount they will deposit in one year.
• Determine the total amount they will deposit in 15 years.
• Pragya borrows Rs. 4896 from Vidushi to buy an almirah and returns Rs. 6072 in total in a year.
• Calculate how much Pragya returns to Vidushi each month.
• Aruna buys 12000 kg of fresh fish for Rs. 40 per kg and dries it.
• The dried fish is one-third the weight of the fresh fish.
• She sells the dried fish for Rs. 200 per kg and pays Rs. 890 for transportation.
• Determine Aruna's earnings in the entire transaction.
• Radhika sells 8 kg of octopus for Rs. 2408.
• Calculate the price at which Radhika sells 1 kg of octopus.
• Mariya sells anabas fish for Rs. 80 per kg.
• Calculate how much Mariya earns for selling seven and a half kg of anabas.
• Priyanka pays Rs. 200 for anabas.
• Calculate how much anabas fish Priyanka gets for Rs 200.
• Write the number names for numbers, including: 8,64,07,359; 7,34,99,287; 23,45,96,007; 85,26,789; 90,90,909.
• Convert 1 crore into thousands.
• Convert 10 lakhs into hundreds.
• Convert 7 thousands into tens.
• Convert 85 hundreds into tens.

Boat Information and Calculations

• A motor boat catches 50 kg per trip and has a speed of 25 km/hr.
• A log boat catches 15 kg per trip and has a speed of 3 km/hr.
• A machine boat catches 700 kg per trip and has a speed of 90 km/hr.
• A long tail boat catches 25 kg per trip and has a speed of 10 km/hr.
• A double decker boat catches 500 kg per trip and has a speed of 80 km/hr.
• Calculate how far a motor boat goes in 7 hours, find speed * time.
• Calculate how long the machine boat will take to go 540 km, find distance / speed.
• Calculate how much fish the double decker boat can bring in 5 trips, find catch per trip * number of trips.
• Calculate how much fish each boat will bring in 4 trips, find catch per trip * number of trips.
• Draw 5 different fishes/vegetables using the given shapes.
• Write the successor of each number: 89,799; 74,610; 3,49,849.
• Write the predecessor of each number: 6,79,482; 5,55,555; 68,68,689.

Comparisons and Values

• Use the appropriate signs (>, <, or =) to compare the numbers: 1 crore vs 1,00,00,000; 65,87,908 vs 7,84,900; 56,92,284 vs 56,89,428; 80,12,03,349 vs 8,01,30,249; 2,22,33,495 vs 2,23,32,495.
• Find the value of 1 crore.
• Find the value of 1 lakh.
• Find the value of 10 crores.
• Find the value of 10 lakhs.
• Find the value of 1 thousand.
• Find the value of 10 thousands.
• Find the value of 1 hundred.