CBSE Class 3 Mathematics Assignment Set 05

ASSIGNMENT NO 1

Question 1. Write the numerals for each of the following:
a. Eight thousand twenty eight
Answer: 8028
In simple words: Write the digits according to their place values: 8 in thousands place, 0 in hundreds place, 2 in tens place, and 8 in ones place.

Exam Tip: Always double check each place value position from thousands down to ones to ensure no place is missed.

Question 1. b. Nine thousand four hundred
Answer: 9400
In simple words: Place 9 in thousands place, 4 in hundreds place, and 0 in both tens and ones places.

Exam Tip: When tens and ones are not mentioned, fill those places with zeros.

Question 1. c. Five hundred forty-four
Answer: 544
In simple words: Write 5 in hundreds place, 4 in tens place, and 4 in ones place.

Question 1. d. Seven thousand sixty
Answer: 7060
In simple words: Write 7 in thousands, 0 in hundreds, 6 in tens, and 0 in ones place.

Exam Tip: Be careful with numbers like sixty (60) which means 6 tens and 0 ones, leaving the hundreds place as 0.

Question 2. Write the number name for each of the following:
a. 3456
Answer: Three thousand four hundred fifty-six
In simple words: Spell out each digit according to its place: 3 is three thousand, 4 is four hundred, and 56 is fifty-six.

Exam Tip: Use hyphens between tens and units when writing compound numbers like fifty-six.

Question 2. b. 9008
Answer: Nine thousand eight
In simple words: 9 is in thousands place and 8 is in ones place, with zeros in hundreds and tens places.

Exam Tip: Do not write place names for zero values (skip mentioning hundreds and tens).

Question 2. c. 8675
Answer: Eight thousand six hundred seventy-five
In simple words: Spell out eight thousand, six hundred, and seventy-five.

Exam Tip: Check spelling for seventy and eighty to avoid common spelling errors.

Question 2. d. 1509
Answer: One thousand five hundred nine
In simple words: Write one thousand, five hundred, and nine.

Exam Tip: Remember that zero in the tens place means we do not write any tens word.

Question 3. Write the successor of the following:
a. 5000
Answer: 5001
In simple words: Successor means the number that comes immediately after, found by adding 1.

Exam Tip: Successor = Given Number + 1.

Question 3. b. 7019
Answer: 7020
In simple words: Add 1 to 7019 to get the next number, 7020.

Exam Tip: Adding 1 changes 19 to 20 in the tens and ones places.

Question 4. Write the predecessor of the following:
a. 1039
Answer: 1039 (Note: For the given blank before 1040, the predecessor is 1039)
In simple words: Predecessor means the number that comes right before, found by subtracting 1.

Exam Tip: Predecessor = Given Number - 1.

Question 4. b. 7999
Answer: 7999 (Note: For the given blank before 8000, the predecessor is 7999)
In simple words: Subtract 1 from 8000 to get 7999.

Exam Tip: When subtracting 1 from numbers ending in zeros like 8000, remember regrouping makes it 7999.

Question 5. Put <, >, = sign in the box
a. 5678 \(\square\) 5677
Answer: 5678 > 5677
In simple words: 5678 is greater than 5677.

Exam Tip: Compare digits from left to right. Thousands and hundreds are equal, but in tens/ones, 78 is greater than 77.

Question 5. b. 8960 \(\square\) 8879
Answer: 8960 > 8879
In simple words: Compare the hundreds place: 9 hundreds is greater than 8 hundreds.

Exam Tip: As soon as you find a larger digit in a higher place value from left to right, that number is greater.

Question 5. c. 4099 \(\square\) 4099
Answer: 4099 = 4099
In simple words: Both numbers are exactly the same.

Exam Tip: When all digits match identically, use the equals sign.

Question 5. d. 2013 \(\square\) 2030
Answer: 2013 < 2030
In simple words: 13 is smaller than 30 in the tens and ones places.

Exam Tip: Compare tens place directly: 1 ten is less than 3 tens.

Question 6. Write the place value and face value of the following:
a. For the number 2509 (Th: 2, H: 5, T: 0, O: 9):
Answer:
Place value of 9 = 9 (or 9 ones), Face value = 9
Place value of 0 = 0 (or 0 tens), Face value = 0
Place value of 5 = 500 (or 5 hundreds), Face value = 5
Place value of 2 = 2000 (or 2 thousands), Face value = 2
In simple words: Face value is the digit itself, and place value is the value of the digit based on its position.

Exam Tip: Face value never changes regardless of position, but place value depends on the place (Ones, Tens, Hundreds, Thousands).

Question 6. b. For the number 2509 (Second table repetition):
Answer:
Place value of 9 = 9, Face value = 9
Place value of 0 = 0, Face value = 0
Place value of 5 = 500, Face value = 5
Place value of 2 = 2000, Face value = 2
In simple words: Same as above as the number given in the worksheet table is 2509.

Exam Tip: Place value of zero is always zero, no matter which place it occupies.

Question 7. Make the greatest and smallest 4-digit numbers with the given digits.
a. 4, 3, 5, 8
Answer: Greatest: 8543 | Smallest: 3458
In simple words: Arrange digits in descending order for greatest, and ascending order for smallest.

Exam Tip: For greatest number, put the largest digit first. For smallest, put the smallest non-zero digit first.

Question 7. b. 8, 9, 0, 8
Answer: Greatest: 9880 | Smallest: 8089
In simple words: For the smallest number, do not start with 0. Start with the next smallest non-zero digit (8), then place 0.

Exam Tip: Never start a 4-digit number with 0; otherwise, it becomes a 3-digit number.

Question 7. c. 4, 5, 6, 8
Answer: Greatest: 8654 | Smallest: 4568
In simple words: Greatest is 8654 and smallest is 4568.

Question 7. d. 3, 7, 1, 8
Answer: Greatest: 8731 | Smallest: 1378
In simple words: Arrange in reverse order for greatest (8, 7, 3, 1) and normal order for smallest (1, 3, 7, 8).

Exam Tip: Verify that all four given digits are used in each number.

Question 8. Write the Roman numerals for each of the following:
a. 35
Answer: XXXV
In simple words: 35 is broken into 30 (XXX) and 5 (V).

Exam Tip: 30 is written as XXX (10 + 10 + 10).

Question 8. b. 87
Answer: LXXXVII
In simple words: 87 is 50 (L) + 30 (XXX) + 7 (VII).

Exam Tip: Remember L = 50, X = 10, and V = 5, I = 1.