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

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

Question 1. 3 × 7 = ______
Answer: The product of 3 and 7 is 21. Multiplication helps us quickly find the total when we have equal groups.
In simple words: When you multiply 3 by 7, you get 21.

🎯 Exam Tip: Remember your basic multiplication tables, especially for numbers up to 10, as they are fundamental.

Question 2. 6 × 7 = ______
Answer: When you multiply 6 by 7, the result is 42. This shows how we combine six groups of seven things.
In simple words: Six times seven equals 42.

🎯 Exam Tip: Double-check all multiplication facts, as a small error can lead to a wrong answer.

Question 3. 9 × 7 = ______
Answer: Multiplying 9 by 7 gives us a total of 63. Understanding multiplication helps with more complex math problems later.
In simple words: The answer to 9 multiplied by 7 is 63.

🎯 Exam Tip: Practice multiplication tables regularly to build speed and accuracy for quick calculations.

Question 4. A box contains 7 pens. How many pens are there in 5 boxes?
Answer: Each box has 7 pens. To find the total number of pens in 5 boxes, we multiply the number of pens in one box by the number of boxes: \( 7 \times 5 = 35 \) pens. This is a basic application of multiplication in everyday situations.
In simple words: One box has 7 pens. For 5 boxes, you multiply 7 by 5, which gives 35 pens in total.

🎯 Exam Tip: When solving word problems, first identify the key numbers and what operation (like multiplication) is needed to find the answer.

Question 5. One week has 7 days. Calculate the number of days in 10 weeks?
Answer: Since one week has 7 days, to find the number of days in 10 weeks, we multiply the number of days in a week by 10. So, \( 7 \times 10 = 70 \) days. This helps us understand how time units are related.
In simple words: There are 7 days in one week. To find days in 10 weeks, you multiply 7 by 10, which is 70 days.

🎯 Exam Tip: Always clearly state the known information first (like days in a week) before performing calculations.

Complete the 8th Table: Number of Legs in Spider