Page 57 - Math Skill - 5

Assessment - 1 55

Read the paragraph carefully and answer the following questions.

Write down Aadhaar Number:
11. In word (International Place Value)

12. In standard form (Indian Place Value)
13. In expanded form.

Assertion-Reason Based Questions
Directions for Questions 14 to 15: In each of the questions given below, there are two statements
marked as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false. (d) A is false but R is true.
14. Assertion (A) : If product of two numbers is 1620 and their HCF is 9, their LCM is 180.
Reason (R) : HCF is always a factor of LCM.

15. Assertion (A) : Roman numeral of 166 is CLXVI.
Reason (R) : A symbol is placed after the symbol of greater value, the symbol of lesser
value is subtracted.

Subjective Based Questions
16. Write the place value of 5 in the number 72,63,875. What is its place value when the digits
are written in reverse order? Also find the difference between them.
17. Arrange the following numbers in ascending order.

652361, 5523620, 85125, 78728
18. Mark the periods for the number 67830208 in the Indian system of numeration and also
write the number name.

19. Find all the prime factors of 30 and 45.
20. Solve the following.
(a) 7,52,38,389 + 2,12,36,123 – 6,12,38,125 (b) 89380 ÷ 59

21. Find the largest number that divides 163 and 243 leaving 3 as remainder.
22. Evaluate the numerical expressions.

(a) 125 – 25 × 125 ÷ 25 + 25 (b) 40 ÷ (1 + 6 – 2) + 5
23. Find the HCF of the following numbers: 108, 144

24. Find the LCM of the following numbers: 48, 80, 96
25. Fill in to show the prime factorisation. 60