Samacheer Kalvi Class 4 Maths Solutions Term 2 Chapter 2 Numbers Exercise 2.2

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 2 Chapter 2 Numbers Ex 2.2

Question 1. \( 4 \times 6 = \text{______} \)
Answer: \( 4 \times 6 = 24 \). This calculation helps us understand how many items there are when we have 4 groups of 6.
In simple words: When you multiply 4 by 6, the answer is 24.

🎯 Exam Tip: Always practice basic multiplication tables to quickly solve such problems without mistakes.

Question 2. \( 7 \times 2 = \text{______} \)
Answer: \( 7 \times 2 = 14 \). This operation is the same as adding 7 two times.
In simple words: If you multiply 7 by 2, you get 14.

🎯 Exam Tip: Remember that "times two" is the same as doubling a number, which helps for quick mental math.

Question 3. \( 8 \times 2 = \text{______} \)
Answer: \( 8 \times 2 = 16 \). Multiplying by two is a basic skill that helps in many everyday calculations.
In simple words: When you multiply 8 by 2, the result is 16.

🎯 Exam Tip: Double-check your multiplication, especially with small numbers, to avoid simple errors and ensure accuracy.

Question 4. In a shirt there are 6 buttons, how many buttons will there be in 8 shirts?
Answer: Number of buttons in one shirt = 6.
To find the total buttons in 8 shirts, we multiply the number of buttons per shirt by the number of shirts.
Total buttons in 8 shirts = \( 6 \times 8 = 48 \) buttons. So, eight shirts will have 48 buttons in total, showing a direct application of multiplication.
In simple words: One shirt has 6 buttons. For 8 shirts, you multiply 6 by 8, which gives you 48 buttons in total.

🎯 Exam Tip: For "how many in total" questions, always identify the number of items per unit and the total number of units, then multiply.

Question 5. In a carton, there are 9 rows with 6 eggs in each row. How many eggs are there in all?
Answer: Number of eggs in one row = 6.
Number of rows in the carton = 9.
To find the total number of eggs, we multiply the eggs per row by the number of rows.
Total eggs in the carton = \( 6 \times 9 = 54 \) eggs. This calculation is a basic example of finding the total amount in an array.
In simple words: There are 6 eggs in each row and 9 rows. So, \( 6 \times 9 \) gives the total number of eggs, which is 54.

🎯 Exam Tip: When dealing with items arranged in rows, multiplication helps quickly find the total count, especially for larger quantities.

Question 6. Complete the \( 7^{th} \) table (using maths kit box).
Answer: Here is the completed multiplication table for 7. Understanding multiplication tables helps with faster calculations and problem-solving.

🎯 Exam Tip: Mastering multiplication tables is key to building a strong foundation in mathematics for more complex topics later on.