Samacheer Kalvi Class 4 Maths Solutions Term 1 Chapter 2 Numbers Exercise 2.3

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 2 Numbers Ex 2.3

Question 1. Find the face value and place value of the digits coloured in the given numbers,
(a) 1379
(b) 9876
(c) 5136
(d) 8965
(e) 2010
(f) 4038
Answer:
(a) For the number 1379, the digit 3 is in the hundreds place. Its face value is 3. Its place value is \( 3 \times 100 = 300 \).
(b) For the number 9876, the digit 6 is in the ones place. Its face value is 6. Its place value is \( 6 \times 1 = 6 \).
(c) For the number 5136, the digit 5 is in the thousands place. Its face value is 5. Its place value is \( 5 \times 1000 = 5000 \).
(d) For the number 8965, the digit 6 is in the tens place. Its face value is 6. Its place value is \( 6 \times 10 = 60 \).
(e) For the number 2010, the digit 0 is in the ones place. Its face value is 0. Its place value is \( 0 \times 1 = 0 \).
(f) For the number 4038, the digit 0 is in the hundreds place. Its face value is 0. Its place value is \( 0 \times 100 = 0 \). The face value of a digit is the digit itself, no matter where it is placed in the number.
In simple words: The face value is just the digit itself, and the place value is what that digit is worth based on its position in the number (like ones, tens, hundreds).

🎯 Exam Tip: Remember that face value is always the digit itself, while place value depends on the digit's position in the number.

Question 2. Complete the given table.
Answer:

🎯 Exam Tip: Always make sure each digit in the expanded form is multiplied by its correct place value (e.g., thousands, hundreds, tens, ones).

Question 3. Circle the correct answer.
(a) 5 thousands + 3hundreds + 2 ones
(i) 5320
(ii) 5302
Answer: (ii) 5302
In simple words: 5 thousands is 5000, 3 hundreds is 300, and 2 ones is 2. When you add them up, it makes 5302.

🎯 Exam Tip: Convert words like "thousands" and "hundreds" into their numerical values before adding them up to form the number.

Question 3. Circle the correct answer.
(b) The place value of 5 in 3758
(i) 50
(ii) 500
Answer: (i) 50
In simple words: In the number 3758, the digit 5 is in the tens place. So, its place value is \( 5 \times 10 = 50 \).

🎯 Exam Tip: To find the place value, identify the position of the digit (ones, tens, hundreds, etc.) and multiply the digit by the value of that position.

Question 3. Circle the correct answer.
(c) Three thousand six hundred and sixty
(i) 3060
(ii) 3660
Answer: (ii) 3660
In simple words: "Three thousand" means 3000, "six hundred" means 600, and "sixty" means 60. Adding these together makes 3660.

🎯 Exam Tip: Break down the number written in words into its individual place values (thousands, hundreds, tens, ones) to avoid errors when converting to digits.

Question 3. Circle the correct answer.
(d) 4000 + 600 + 90
(i) 4690
(ii) 4609
Answer: (i) 4690
In simple words: When you add 4000, 600, and 90, you get 4690. This sum combines thousands, hundreds, and tens.

🎯 Exam Tip: Align the numbers by their place values (ones under ones, tens under tens, etc.) when adding them to prevent mistakes.