NCERT Solutions for Class 4 Maths Chapter 2: Hide and Seek – Free PDF Download

Chapter 2 of the Class 4 Maths textbook Math Mela is Hide and Seek. It builds number sense through estimation games — guessing a hidden number using clues about whether it is bigger or smaller, and placing numbers on a number line.

The Number Line

Q: What is a number line used for?
A: A number line is a straight line marked with numbers in order, used to compare numbers, see which is bigger or smaller, and understand the position and spacing of numbers.

Playing the Hiding Game

Q: In the hiding game, if a friend says a hidden number is “less than 50 but more than 40”, what numbers could it be?
A: It could be any whole number from 41 to 49 (41, 42, 43, 44, 45, 46, 47, 48, or 49).

Narrowing Down with Clues

Q: Why does each new clue in the game (like “bigger than 45”) help you guess faster?
A: Each clue rules out a range of numbers, narrowing down the possibilities. Combining clues (bigger than one number, smaller than another) leaves fewer and fewer numbers to guess from, until only one remains.

Frequently Asked Questions

What skill does the Hide and Seek chapter build?
Number sense — understanding how numbers relate to each other in size and position, through guessing games with clues.

How do you use a number line to compare two numbers?
The number that appears further to the right on the number line is the larger number.

Written by Satish

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