Student Name
Class / Section
Grade / Year
Teacher
School
Instructions: Read each question carefully and answer to the best of your ability. Show all working for word problems.
1.
Given the number 623541, determine the difference between the place value of the digit 6 and the place value of the digit 5. Then, express your answer in the Indian numbering format.
(10 pts)
2.
Using the digits 6, 0, 8, 4, and 1, form the greatest possible 6-digit number by allowing one digit to be repeated. Explain your reasoning and show each step.
(10 pts)
3.
Determine how many unique 4-digit numbers can be formed using the digits 3, 4, 9, and 0, ensuring that the number does not start with 0. Provide a detailed explanation of your process.
(10 pts)
4.
Two petrol tanks contain 6325 ℓ and 4890 ℓ respectively. Estimate the difference in petrol between the two tanks by first rounding each volume to the nearest hundred litres. Provide all working steps.
(10 pts)
5.
Estimate the product of 958 and 387 by rounding each factor to the nearest hundred. Show all steps in your estimation process.
(10 pts)
6.
Estimate the quotient of 2838 divided by 125 by rounding both the dividend and the divisor to the nearest hundred. Provide detailed working for your estimation.
(10 pts)
7.
A school management spent $26,756 on teachers' pay, $325,378 on building construction, $5,780 on games, and $8,235 on other work. Calculate the total expenditure, showing each step and using the Indian numbering style where appropriate.
(10 pts)
8.
Madhu had $9031. After buying a TV, she was left with $1356. Determine the amount she paid for the TV, and provide each step of your calculation.
(10 pts)
9.
A country's population in 1990 was 906450600. In 1991, the population increased by 9889700. Calculate the population in 1991 with clear working steps.
(10 pts)
10.
Combine two computations: First, find the sum of the predecessor of 97801 and 90526. Second, calculate the product of the successor of 147 and 389. Finally, add both results together. Provide detailed, step-by-step working.
(10 pts)