CBSE Class 5 Mathematics Revision Assignment Set 02

REVISION WORKSHEET-1

Question 1. Write in words and expanded form of each of the following.
34,09,908
Word form:
Expanded form:
Answer: Word form: Thirty-four lakh nine thousand nine hundred eight
Expanded form: \(30,00,000 + 4,00,000 + 0 + 9,000 + 900 + 0 + 8\)
In simple words: Read the number according to the Indian place value system and write its value as a sum of each digit's place value.

Exam Tip: Remember that zeros in place values do not need to be written in the expanded form, or they can be written as 0.

Question 2. Write the period, place value and face value of each of the underlined digits.
Number Period Place value Face value
a) 76,68,903 =___________, _____________, ____________
b) 98,76,532 = ___________, _____________, _____________
Answer:
a) Number: 76,68,903 (Underlined digit is 7)
Period: Lakhs
Place value: \(70,00,000\)
Face value: 7

b) Number: 98,76,532 (Underlined digit is 7)
Period: Thousands
Place value: \(70,000\)
Face value: 7
In simple words: The face value is the digit itself, the place value is the digit multiplied by its position, and the period is the group (ones, thousands, lakhs) where the digit lies.

Exam Tip: Face value never changes regardless of the position of the digit, whereas place value depends entirely on its position.

Question 3. a) What is the predecessor of 79,86,500?
b) What is the successor of 80,10,569?
Answer:
a) Predecessor of 79,86,500 = \(79,86,500 - 1 = 79,86,499\)
b) Successor of 80,10,569 = \(80,10,569 + 1 = 80,10,570\)
In simple words: Predecessor means 1 less than the given number, and successor means 1 more than the given number.

Exam Tip: Always subtract 1 to find a predecessor and add 1 to find a successor.

Question 4. Write the numeral for each of the following.
a) Seventy lakh thirty four thousand two hundred.
b) Forty five lakh seventy eight thousand nine hundred two.
Answer:
a) 70,34,200
b) 45,78,902
In simple words: Place commas correctly according to the Indian numbering system for lakhs and thousands periods.

Exam Tip: Double-check the number of zeros in thousands and lakhs periods before finalizing your numeral.

Question 5. Form the greatest and smallest 6-digit number by using the digits only once (9,0,6,8,3,1).
Answer:
Digits given: 9, 0, 6, 8, 3, 1
Greatest 6-digit number: Arranging digits in descending order = 986,310
Smallest 6-digit number: Arranging non-zero smallest digit first, then 0, then ascending order = 103,689
In simple words: To make the greatest number, write the biggest digit first. To make the smallest number, write the smallest non-zero digit first, followed by 0.

Exam Tip: Never start a smallest number with 0 because a 6-digit number cannot begin with 0.

Question 6. Round each of the following numbers
a) 505 to nearest tens
b) 6968 to nearest hundreds
c) 7530 to nearest thousand
Answer:
a) 505 rounded to the nearest tens = 510 (since the digit in the ones place is 5, which is 5 or more)
b) 6968 rounded to the nearest hundreds = 7000 (since the digit in the tens place is 6, which is 5 or more)
c) 7530 rounded to the nearest thousand = 8000 (since the digit in the hundreds place is 5, which is 5 or more)
In simple words: Look at the digit to the right of the place you are rounding to. If it is 5 or more, round up; if it is less than 5, round down.

REVISION WORKSHEET

Q1. Write in words.

a. 62,456

b. 20,034

c. 1,89,234

Q2. Write the Place value of the underlined digit and find their sum.

a.12,485 

b.62,341

c.92800

Q3. Write the following numbers in expanded form.

a. 92,634

b. 70,234

c. 81,006

Q4. Form the greatest and smallest numbers using the following digits:

Greatest Smallest

a. 2, 4, 5, 6, 8

b. 6, 2, 0, 9, 7

c. 7, 0, 3, 1, 9

Q5. Write the following Hindu-Arabic numerals in Roman Numerals:

a. 20

b. 19

c. 35

Topic : Roman Numerals

NOTE - ALL QUESTIONS ARE COMPULSORY.

(1) Write the Roman numerals for the following numbers -
(a) 43
(b) 58
(c) 199

(2) Write the Hindu –Arabic numerals for the following -
(a) LXIX
(b) CCVI
(c) CDXL

(3) Find the value of CDLVIII .

(4) Write the Roman numerals XC , LXXXIX , CIX , XCI and CXIV in ascending order.

(5) Solve and write the answer in Roman numerals .
(a) CD + VIII = ………………......
(b) CLXIX ÷ XIII = ……………………
(c) C + XL + VII = ……………..
(d) XC - XV = ……………………

(6) Find the value of CDXL + XIV + VI .

(7) Write the value of CDXCIX into Hindu-Arabic numeral .

(8) Write Hindu-Arabic numeral into Roman numeral

(a) 229 (b) 425 (c) 515 (d) 190

Q1.Round the following numbers to nearest ten thousand.

a) 34,23,126 b) 34,67,549 c) 34,45,876 d) 45,62,897

Q2. Solve the following.

a) XXI + IX b) XIX + XXXII c) XXV – IX d) XXIX -XIV

Q3. Write the number after.

a) 79,98,999 b)15,09,999 c) 23,99,999

Q4. Write the number before.

a) 45,89,000 b) 67,00,000 c) 39,01,000

Q5. Write the greatest and smallest 7- digit number you can make using the digits 3,0,8,7,1 . (you may repeat the digits)

Topic : ROMAN NUMERALS

(1) Roman numerals for the following numbers are
(a) 43 = XLIII
(b) 58 = LVIII
(c) 199 = CXCIX

(2) Hindu –Arabic numerals are -
(a) LXIX = 69
(b) CCVI = 206
(c) CDXL = 440

(3) The value of CDLVIII =400 + 50 + 8 = 458 .

(4) Ascending order = LXXXIX , XC , XCI , CIX and CXIV .

(5) Answer in Roman numeral are -
(a) CD + VIII = 400 + 8 = 408 = CDVIII .
(b) CLXIX ÷ XIII = 169 ÷ 13 = 13 = XIII .
(c) C + XL + VIII = 100 + 40 + 8 = 148 = CXLVIII .
(d) XC - XV = 90 – 15 = 75 = LXXV .

(6) The value of CDXL + XIV + VI = 440 + 14 + 6 = 460 = CDLX .

(7) The value of CDXCIX = 400 + 90 + 9 = 499

(8) Hindu-Arabic numeral into Roman numeral

(a) 229 = CCXXIX (b) 425 = CDXXV

(c) 515 = DXV (d) 190 = CXC