Samacheer Kalvi Class 5 Maths Solutions Term 1 Chapter 3 Patterns More Ques

Tamilnadu Samacheer Kalvi 5th Maths Solutions Term 1 Chapter 3 Patterns Additional Questions

Question 1. Square of the number 9 is _____
(a) 81
(b) 49
(c) 21
(d) 81
Answer: (d) 81
In simple words: The square of 9 means 9 multiplied by 9, which is 81.

🎯 Exam Tip: Remember that squaring a number means multiplying it by itself, not by 2.

Question 2. 49 is the square number of _____
(a) 4
(b) 16
(c) 9
(d) 5
Answer: (a) 7
In simple words: 49 is the result of 7 multiplied by 7. So, 7 is the number whose square is 49.

🎯 Exam Tip: Knowing perfect squares up to 10 or 12 can help you answer these questions quickly.

Question 3. Is 36 square number?
Answer: Yes, 36 is a square number. It is the result of multiplying 6 by itself, as \(6^2 = 36\). This makes 36 a perfect square.
In simple words: Yes, 36 is a square number because 6 multiplied by 6 equals 36.

🎯 Exam Tip: To check if a number is a perfect square, try to find an integer that, when multiplied by itself, gives that number.

Question 4. 2, 3, 5, _____, 12, _____, 23
Answer: The given sequence is 2, 3, 5, _____, 12, _____, 23. The pattern involves adding consecutive increasing numbers:
\(2 + 1 = 3\)
\(3 + 2 = 5\)
\(5 + 3 = 8\) (First missing number)
\(8 + 4 = 12\)
\(12 + 5 = 17\) (Second missing number)
\(17 + 6 = 23\)
Therefore, the missing numbers are 8 and 17.
In simple words: The numbers go up by adding 1, then 2, then 3, and so on. So, after 5, you add 3 to get 8. After 12, you add 5 to get 17.

🎯 Exam Tip: When looking for patterns in number sequences, first check for simple addition, subtraction, multiplication, or division rules, or a combination of these.