# Prime Number and Mark Questions

GRADE 5)

CHAPTER 1 (LARGE NUMBERS) ONE MARK QUESTIONS

1. 7000 lakh = _______________________ crore. a) 7 b) 70 c) 700 d) 7000 TWO MARK QUESTIONS

1. Write 700083460 in numerals and their number names in both the systems of numeration. 2. Write the smallest and the greatest numbers using each of the digits 4, 8, 0, 1, 7, 6, 5 only once. CHAPTER 2 (ROUNDING NUMBERS AND ESTIMATION) ONE MARK QUESTIONS

1. The municipal corporation spent Rs. 25, 37, 981 on repairing the roads (round it to the nearest ten thousand). a) 25,40,000 b) 25,30,000 c) 26,00,000 d) 25,37,000 2. Which of the following numbers could be rounded to 9700? a) 9585 b) 9755 c) 9655 d) 9645 TWO MARK QUESTIONS

1. Round off the greatest 9 – digit number to the nearest ten – lakh. 2. Estimate: 63809 – 5523. CHAPTER 3 (OPERATIONS ON LARGE NUMBERS) ONE MARK QUESTIONS

1. If 3900 kg of onions are put into sacks and each sack holds 30 kg, how many sacks are required? a) 30 b) 130 c) 117000 d) 3900 TWO MARK QUESTIONS

1. Find the product of the successor of the greatest 3 digit number and 999. THREE MARK QUESTIONS

1. Raj won 35 tournaments. The prize money totalled up to Rs. 6, 47,500. If he received the same amount for every tournament, how much had he earned per tournament? CHAPTER 4 (FACTORS AND MULTIPLES) ONE MARK QUESTIONS

1. The prime factorization of 27 is ________________________. a) 9 × 3 b) 3 c) 3 × 3 2. Identify a factor of 54 from the following numbers. a) 4 b) 18 c) 8

d) 3 × 3 × 3 d) 28

TWO MARK QUESTIONS

1. Is 65, 490 divisible by 15? Justify your answer.

THREE MARK QUESTIONS

1. Write any three twin primes and co – primes among the first 20 natural numbers. 2. Find the HCF of 56, 72 and 140 by prime factorization method. FOUR MARK QUESTIONS

1. Find the LCM of 39, 45 and 54 by division method.

CHAPTER 5 (BASICS OF GEOMETRY) ONE MARK QUESTIONS

1. An angle whose measure is 3040 is called a ____________________ angle. a) Acute...

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