CBSE Class 4 Mathematics Practice Assignment Set 05

Q1. Write in words.

a) 50,234
Answer: Fifty thousand two hundred thirty-four
In simple words: Read the digits according to their place values from left to right as fifty thousand, two hundred, and thirty-four.

Exam Tip: Always separate thousands from hundreds with a space and use a hyphen between tens and units numbers from 21 to 99 (except multiples of 10).

b) 42,110
Answer: Forty-two thousand one hundred ten
In simple words: Combine forty-two in the thousands period with one hundred ten.

Exam Tip: Be careful with numbers ending in 'ten' or 'eleven' to avoid spelling errors.

c) 5,909
Answer: Five thousand nine hundred nine
In simple words: Since there are no tens, read the hundreds as nine hundred and the ones as nine.

Exam Tip: When a place value has zero, simply skip saying that place name.

d) 80,564
Answer: Eighty thousand five hundred sixty-four
In simple words: Eighty thousand followed by five hundred and sixty-four.

e) 28,090
Answer: Twenty-eight thousand ninety
In simple words: Twenty-eight thousand with ninety in the ones and tens place, skipping the hundreds place.
Exam Tip: Notice that the hundreds digit is 0, so 'hundred' is not mentioned in words.

Q2. Write in figures.
a) Six thousand three hundred thirty.
Answer: 6,330
In simple words: Write 6 in the thousands place, 3 in the hundreds place, 3 in the tens place, and 0 in the ones place.

Exam Tip: Place a comma after the thousands digit when writing numbers of four or more digits.

b) Thirteen thousand six hundred seventy five.
Answer: 13,675
In simple words: Thirteen goes before the comma, followed by 6 for hundreds, 7 for tens, and 5 for ones.

Exam Tip: Look for the word 'thousand' to know where to place the comma.

c) Ninety thousand nineteen.
Answer: 90,019
In simple words: Ninety thousand is 90, followed by 0 in the hundreds place and 19 for tens and ones.

Exam Tip: Always fill missing place values like hundreds with a zero.

d) Twenty thousand four hundred.
Answer: 20,400
In simple words: Twenty thousand followed by four in the hundreds place and zeros in tens and ones.

Exam Tip: Ensure zeros occupy the empty positions at the end of the number.

e) Three thousand one hundred three.
Answer: 3,103
In simple words: Three thousand, one hundred, zero tens, and three ones.

Exam Tip: Do not miss writing zero in the tens place since no tens are mentioned.

Q3. Fill in the blanks.
a) 1,209 _________ 1,211
Answer: 1,210
In simple words: The number comes right between 1,209 and 1,211, which is 1,210.

Exam Tip: This is a simple counting sequence going forward by 1.

b) _________ 21,116 _________
Answer: 21,115 and 21,117
In simple words: Write the number that comes before 21,116 and the number that comes after it.

Exam Tip: Fill both blanks with the preceding and succeeding numbers respectively.

c) 7,564 _________ 7,566
Answer: 7,565
In simple words: The missing number is the middle value between 7,564 and 7,566.

Exam Tip: Add 1 to 7,564 to get the missing term.

d) _________ 7,330 _________
Answer: 7,329 and 7,331
In simple words: Find the predecessor and successor of 7,330.

e) _________ 65,756 _________
Answer: 65,755 and 65,757
In simple words: Write the number just before and just after 65,756.
Exam Tip: Verify the thousands and ten-thousands digits remain unchanged.

Q4. Write in expanded form.
a) 3,345 = ___________ + ___________ + ___________ + _________
Answer: 3,345 = 3,000 + 300 + 40 + 5
In simple words: Break down each digit according to its place value: 3 thousands, 3 hundreds, 4 tens, and 5 ones.

Exam Tip: Expanded form represents the sum of the place values of all digits.

b) 1,543 = ___________ + ___________ + ___________ + _________
Answer: 1,543 = 1,000 + 500 + 40 + 3
In simple words: Expand each digit from left to right with appropriate zeros.

Exam Tip: Count the digits to the right of each number to know how many zeros to append.

c) 5,550 = ___________ + ___________ + ___________ + _________
Answer: 5,550 = 5,000 + 500 + 50 + 0
In simple words: Write out 5,000, 500, 50, and 0 for the ones place.

Exam Tip: Even though the ones place is zero, include it as 0 to complete the four parts.

d) 9,206 = ___________ + ___________ + ___________ + _________
Answer: 9,206 = 9,000 + 200 + 0 + 6
In simple words: 9 thousands, 2 hundreds, 0 tens, and 6 ones.

Exam Tip: Do not omit the zero for the tens place when four slots are given.

e) 8,611 = ___________ + ___________ + ___________ + _________
Answer: 8,611 = 8,000 + 600 + 10 + 1
In simple words: 8,000 plus 600 plus 10 plus 1.

Exam Tip: Check that adding all expanded parts gives back the original number.

Q5. Write the place value of the underlined digits.
a) \(2\underline{5},609 =\) ____________
Answer: 5,000
In simple words: The underlined digit 5 is in the thousands place, so its place value is 5,000.

Exam Tip: Place value is the digit multiplied by its position value (1, 10, 100, 1000, etc.).

b) \(13,8\underline{9}6 =\) ____________
Answer: 90
In simple words: The underlined digit 9 is in the tens place, making its place value 90.

Exam Tip: A digit in the tens place is always followed by one zero.

c) \(4\underline{5},743 =\) ___________
Answer: 5,000
In simple words: The underlined digit 5 is in the thousands place, so its value is 5,000.

Exam Tip: Identify the period and place name carefully before writing the answer.

d) \(56,98\underline{7} =\) ____________
Answer: 7
In simple words: The underlined digit 7 is in the ones place, so its place value is 7.

Exam Tip: The place value of any digit in the ones place is the digit itself.

e) \(34,\underline{1}94 =\) ____________
Answer: 100
In simple words: The underlined digit 1 is in the hundreds place, giving a place value of 100.

Exam Tip: Hundreds place values always have two zeros after the digit.