Maximum Marks: 30
Attempt all questions
Q1. How many zeros are in one crore? (1 Mark)
(a) 5
(b) 7
(c) 9
(d) 8
Q2. In the Indian system, the number 5,23,456 is read as: (1 Mark)
(a) Five lakh twenty-three thousand four hundred fifty-six
(b) Five crore twenty-three thousand four hundred fifty-six
(c) Fifty-two lakh three thousand four hundred fifty-six
(d) Five lakh three thousand four hundred fifty-six
Q3. What is the place value of 7 in the number 4,87,231? (1 Mark)
(a) 7,000
(b) 70,000
(c) 7,00,000
(d) 700
Q4. State whether the following statement is True or False: (1 Mark)
"In the International system, 1 crore is equal to 10 million."
Q5. What is the smallest 7-digit number in the Indian system? (1 Mark)
(a) 1,00,000
(b) 10,00,000
(c) 1,00,00,000
(d) 10,00,00,000
Q6. Write the number 8,76,543 in words using the Indian system and the International system. (2 Mark)
Q7. Round the number 4,56,789 to the nearest ten thousand. (2 Mark)
Q8. Calculate the number of days required to taste 1 lakh varieties of an item if you taste 4 varieties per day. (2 Mark)
Q9. Write the number 3,45,67,890 in expanded form using the Indian system. (3 Mark)
Q10. A building is 5 metres per floor. How many floors are needed to reach a height of 250 metres? If the height is increased to 260 metres, how many floors are required (round up to the nearest whole number)? (3 Mark)
Q11. Compare 25 lakh and 2 million using '<', '>', or '='. Show your working. (3 Mark)
Q12. A city has a population of 85,00,000. If each bus can carry 40 people, calculate how many buses are needed to transport the entire population. Round the number of buses to the nearest thousand and explain why rounding is useful in this context. (5 Mark)
Q13. Using the shortcut method, calculate 236 × 25. Then, verify the answer using standard multiplication. Calculate 236 × 50 using the shortcut method and verify using standard multiplication. (5 Mark)
You can access the solutions to this Unit Test here.
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5. How do large numbers relate to scientific notation? | ![]() |