Samacheer Kalvi Class 5 Maths Solutions Term 1 Chapter 2 Numbers More Ques

Tamilnadu Samacheer Kalvi 5th Maths Solutions Term 1 Chapter 2 Numbers Additional Questions

 

I. Write the number name:

 

Question I. (a) Write the number name for the sequence: 15,501; 15,502; 15,503; 15,504; 15,505; 15,506; 15,507
Answer:
15,501: Fifteen thousand five hundred and one.
15,502: Fifteen thousand five hundred and two.
15,503: Fifteen thousand five hundred and three.
15,504: Fifteen thousand five hundred and four.
15,505: Fifteen thousand five hundred and five.
15,506: Fifteen thousand five hundred and six.
15,507: Fifteen thousand five hundred and seven. A number name helps in understanding the value of large numbers easily.
In simple words: We write out what each number sounds like when we say it, like "fifteen thousand five hundred and one".

🎯 Exam Tip: Pay close attention to the spelling of number names, especially for words like "thousand," "hundred," and the 'ty' endings (e.g., 'twenty', 'thirty').

 

Question I. (b) Write the number name for the sequence: 5110; 5120; 5130; 5140; 5150; 5160; 5170; 5180
Answer:
5110: Five thousand one hundred and ten.
5120: Five thousand one hundred and twenty.
5130: Five thousand one hundred and thirty.
5140: Five thousand one hundred and forty.
5150: Five thousand one hundred and fifty.
5160: Five thousand one hundred and sixty.
5170: Five thousand one hundred and seventy.
5180: Five thousand one hundred and eighty. Each number name clearly describes its value.
In simple words: We spell out these numbers. The hundreds and thousands parts stay the same, and only the 'tens' part changes.

🎯 Exam Tip: Practice counting by tens, hundreds, and thousands to improve your speed and accuracy when writing number names in sequence.

 

Question I. (c) Write the number name for the sequence: 10,001; 10,002; 10,003; 10,004; 10,005; 10,006; 10,007
Answer:
10,001: Ten thousand and one.
10,002: Ten thousand and two.
10,003: Ten thousand and three.
10,004: Ten thousand and four.
10,005: Ten thousand and five.
10,006: Ten thousand and six.
10,007: Ten thousand and seven. These numbers show a pattern of increasing by one unit.
In simple words: For each number, we say "ten thousand" and then the single digit number that follows.

🎯 Exam Tip: Be careful with zeros in the middle of a number; if there are zeros in the tens and hundreds place, simply say "and" followed by the non-zero digit.

 

Question I. (d) Write the number name for the sequence: 22,201; 22,202; 22,203; 22,204; 22,205; 22,206; 22,207
Answer:
22,201: Twenty-two thousand two hundred and one.
22,202: Twenty-two thousand two hundred and two.
22,203: Twenty-two thousand two hundred and three.
22,204: Twenty-two thousand two hundred and four.
22,205: Twenty-two thousand two hundred and five.
22,206: Twenty-two thousand two hundred and six.
22,207: Twenty-two thousand two hundred and seven. This exercise helps in understanding numerical sequences.
In simple words: For these numbers, we say "twenty-two thousand two hundred" and then add the last single digit.

🎯 Exam Tip: Remember to use hyphens for compound numbers like "twenty-two" and "ninety-nine" when writing number names.

 

II. Write the number name:

 

Question 1. In 28,649:
(a) The place value of 4 is
(b) The place value of 8 is
(c) The place value of 2 is
Answer:
(a) The place value of 4 is Ten (40).
(b) The place value of 8 is Thousand (8,000).
(c) The place value of 2 is Ten thousand (20,000). Place value helps us understand how much each digit in a number represents.
In simple words: We find what each digit (4, 8, 2) is worth in the number 28,649 based on its spot.

🎯 Exam Tip: To find the place value, identify the digit's position (ones, tens, hundreds, thousands, etc.) and multiply the digit by its position's value.

 

Question 2. Fill the table with the place value for the following numbers

Answer:The place value table helps organize numbers and understand the value of each digit based on its position, especially for larger numbers.
In simple words: This table shows what each number looks like when we break it down by its place, like ones, tens, hundreds, thousands, and so on.

🎯 Exam Tip: Always make sure to align the digits correctly under their respective place value columns to avoid errors, especially when dealing with numbers of different lengths.

 

Question 3. Find the difference between greatest 8-digit number and smallest 7-digit number.
Answer:
The greatest 8-digit number is 9,99,99,999.
The smallest 7-digit number is 10,00,000.
Difference = Greatest 8-digit number - Smallest 7-digit number
Difference = 9,99,99,999 - 10,00,000
Difference = 9,89,99,999. Calculating the difference between numbers helps us understand the gap between them.
In simple words: We take the biggest 8-digit number and subtract the smallest 7-digit number to find how much bigger the first one is.

🎯 Exam Tip: Remember that the greatest n-digit number is always n times '9', and the smallest n-digit number is '1' followed by n-1 zeros.

 

III. Read the following numbers by placing the commas at appropriate periods and write their number names.

 

Question 1. (a) 21834929
Answer:
2,18,34,929
Number name: Two crore eighteen lakh thirty-four thousand nine hundred and twenty-nine. Placing commas correctly helps in reading large numbers easily.
In simple words: We put commas in the number 21834929 to make it 2,18,34,929, and then say its name.

🎯 Exam Tip: In the Indian numbering system, commas are placed after the hundreds place, then after every two digits (e.g., thousands, lakhs, crores).

 

Question 1. (b) 452875
Answer:
4,52,875
Number name: Four lakh fifty-two thousand eight hundred and seventy-five. Understanding place values helps in writing correct number names.
In simple words: We place commas in 452875 to get 4,52,875, then write its name.

🎯 Exam Tip: Be careful with the "lakh" period which follows the "thousand" period in the Indian system. One lakh is 100,000.

 

Question 1. (c) 38232883
Answer:
3,82,32,883
Number name: Three crore eighty-two lakh thirty-two thousand eight hundred and eighty-three. Practice helps in quickly converting numbers to their names.
In simple words: We put commas in 38232883 to make it 3,82,32,883, then write its name.

🎯 Exam Tip: Double-check the number of zeros and the position of each digit to ensure the number name matches the numeral exactly.

 

Question 1. (d) 458921
Answer:
4,58,921
Number name: Four lakh fifty-eight thousand nine hundred twenty-one. Knowing the structure of the number system is key to this.
In simple words: We place commas in 458921 to get 4,58,921, then write its name.

🎯 Exam Tip: Reading the number aloud after adding commas can help catch errors in its number name form.

 

Question 2. Write the place value of 4 in the following numbers.

 

Question 2. (a) 3478921
Answer:
In 34,78,921, the digit 4 is in the lakhs place.
Place value of 4 = Lakh (4,00,000). The place value indicates the power of ten associated with a digit.
In simple words: In the number 34,78,921, the number 4 is in the lakhs place. So, its value is four lakhs.

🎯 Exam Tip: Count positions from the right (ones, tens, hundreds, thousands, ten thousands, lakhs, ten lakhs, crores, etc.) to correctly identify the place value.

 

Question 2. (b) 275431
Answer:
In 2,75,431, the digit 4 is in the hundreds place.
Place value of 4 = Hundred (400). Every digit holds a specific value based on its position.
In simple words: In 2,75,431, the number 4 is in the hundreds place. So, its value is four hundred.

🎯 Exam Tip: Practice identifying place values with various numbers to become quick and confident.

 

Question 2. (c) 6832341
Answer:
In 68,32,341, the digit 4 is in the tens place.
Place value of 4 = Ten (40). The place value of a digit is its digit value multiplied by its position value.
In simple words: In 68,32,341, the number 4 is in the tens place. So, its value is forty.

🎯 Exam Tip: Understand that the "tens" place means multiplying by 10, the "hundreds" place by 100, and so on.

 

Question 2. (d) 4387162
Answer:
In 43,87,162, the digit 4 is in the ten lakhs place.
Place value of 4 = Ten lakh (40,00,000). This indicates that the 4 represents four million, or forty lakhs.
In simple words: In 43,87,162, the number 4 is in the ten lakhs place. So, its value is forty lakhs.

🎯 Exam Tip: For larger numbers, it's useful to visually group digits using commas (e.g., 43,87,162) to quickly identify place values.

 

Question 3. Write the following in standard notation.

 

Question 3. (a) 20000 + 8000 + 300 + 20 + 1
Answer:
20000 + 8000 + 300 + 20 + 1 = 28321. Standard notation combines all the expanded values into a single number.
In simple words: We add all these numbers together to get one normal number.

🎯 Exam Tip: When adding numbers in expanded form, align them by place value (ones under ones, tens under tens, etc.) to prevent calculation errors.

 

Question 3. (b) 7000 + 300 + 60 + 4
Answer:
7000 + 300 + 60 + 4 = 7364. This is the sum of thousands, hundreds, tens, and ones.
In simple words: Add these numbers up to find the single number they make.

🎯 Exam Tip: Be careful not to miss any place values (e.g., if there's no hundreds value, remember it means 0 in that place). If any place is missing, consider it a zero.

 

Question 3. (c) 800000 + 70000 + 6000 + 400 + 50 + 9
Answer:
800000 + 70000 + 6000 + 400 + 50 + 9 = 876459. Each term contributes to a specific place value in the final number.
In simple words: We sum up these large numbers to write them as one normal number.

🎯 Exam Tip: Always double-check your addition by adding from right to left (ones, tens, hundreds) to ensure accuracy.

 

Question 4. Write the following number in expanded form.

 

Question 4. (a) 72,513
Answer:
72,513 = \( 7 \times 10,000 + 2 \times 1000 + 5 \times 100 + 1 \times 10 + 3 \times 1 \). Expanded form shows the value of each digit clearly.
In simple words: We break down the number 72,513 by showing what each digit (7, 2, 5, 1, 3) is worth.

🎯 Exam Tip: To write in expanded form, identify the place value of each digit and multiply the digit by its corresponding power of 10.

 

Question 4. (b) 75,23,547
Answer:
75,23,547 = \( 7 \times 10,00,000 + 5 \times 1,00,000 + 2 \times 10,000 + 3 \times 1000 + 5 \times 100 + 4 \times 10 + 7 \times 1 \). This notation helps visualize the contribution of each digit to the total value.
In simple words: We write out 75,23,547 by showing the value of each digit added together.

🎯 Exam Tip: For large numbers, using commas (Indian system) helps in correctly identifying the place values like lakhs and ten lakhs before expanding.

 

Question 4. (c) 27,48,004
Answer:
27,48,004 = \( 2 \times 10,00,000 + 7 \times 1,00,000 + 4 \times 10,000 + 8 \times 1000 + 0 \times 100 + 0 \times 10 + 4 \times 1 \). Even zero digits contribute to the expanded form by indicating an absence of value in that specific place.
In simple words: We write 27,48,004 by showing the value of each digit (including zeros) when added up.

🎯 Exam Tip: Remember to include terms for zero digits in expanded form if asked to show all place values, even though they simplify to zero.

 

IV. Write the number name,

 

Question 1. (a) 35726
Answer:
35726: Thirty-five thousand seven hundred and twenty-six. Clearly stating the value of each position is key.
In simple words: We write the number 35,726 in words.

🎯 Exam Tip: Break down the number into thousands, hundreds, and tens/ones parts to make writing the number name easier.

 

Question 1. (b) 75825
Answer:
75825: Seventy-five thousand eight hundred and twenty-five. The number name helps in vocalizing and understanding numbers.
In simple words: We write the number 75,825 in words.

🎯 Exam Tip: Always review your spelling for number names, especially for similar-sounding numbers (e.g., fifteen and fifty, thirteen and thirty).

 

Question 2. Find the sum of greatest 3 digit number and smallest 4 digit number.
Answer:
Greatest 3-digit number = 999.
Smallest 4-digit number = 1000.
Sum = 999 + 1000
Sum = 1999. Adding these numbers together helps us understand basic arithmetic operations.
In simple words: We add the biggest three-digit number to the smallest four-digit number.

🎯 Exam Tip: Quickly recall what the greatest n-digit and smallest n-digit numbers are to save time during calculations.

 

V. Find the sum.

 

Question 1. Find the sum of 7853, 237, 5320, and 24.
Answer:
To find the sum, we add the numbers vertically, aligning their place values:
  7853
   237
  5320
+   24
-----
 13434
The total sum is 13,434. Vertical addition is a systematic way to add multiple numbers.
In simple words: We add 7853, 237, 5320, and 24 together to get a total of 13,434.

🎯 Exam Tip: When adding multiple numbers, carefully align them by their place values (ones, tens, hundreds, etc.) to ensure accuracy in each column's sum.

 

Question 2. Add the following,

 

Question 2. (a) 27842 + 5821 + 621 + 48
Answer:
27842 + 5821 + 621 + 48 = 34332. Summing multiple numbers is a fundamental arithmetic skill.
In simple words: We add all these four numbers together to get 34,332.

🎯 Exam Tip: Break down large additions into smaller, manageable parts, or use column addition to minimize errors.

 

Question 2. (b) 5725 + 34788 + 500 + 17
Answer:
5725 + 34788 + 500 + 17 = 41030. Each number contributes to the total sum.
In simple words: Add these four numbers: 5725, 34788, 500, and 17, to get 41,030.

🎯 Exam Tip: Double-check your sum by adding the numbers in a different order, or by re-adding the columns if doing vertical addition.

 

VI. Find the quotient and remainder

 

Question 1. (a) 57396 \( \div \) 9
Answer:
57396 \( \div \) 9
Quotient = 6377
Remainder = 3. Division helps us split a total into equal parts and find any leftover amount.
In simple words: When you divide 57396 by 9, the answer is 6377, and there are 3 left over.

🎯 Exam Tip: To verify your division, multiply the quotient by the divisor and add the remainder; the result should be the original dividend.

 

Question 1. (b) 25855 \( \div \) 5
Answer:
25855 \( \div \) 5
Quotient = 5171
Remainder = 0. A remainder of zero means the number is perfectly divisible.
In simple words: If you divide 25855 by 5, the answer is 5171 with nothing left over.

🎯 Exam Tip: Numbers ending in 0 or 5 are always divisible by 5, which means they will have a remainder of 0 when divided by 5.

 

Question 1. (c) 1482 \( \div \) 7
Answer:
1482 \( \div \) 7
Quotient = 211
Remainder = 5. Understanding long division steps is crucial for these calculations.
In simple words: Dividing 1482 by 7 gives you 211, with 5 as the leftover.

🎯 Exam Tip: Always show your long division working steps clearly to avoid mistakes and to help identify where an error might have occurred if the answer is wrong.