NCERT Solutions for Class 3 Maths Chapter 1 What’s in a Name? (PDF) – 2027

They could make one mark on the wall for each cow that goes out.

When a cow comes back, strike out one mark. No mark left means every cow is home.

Yes, all the cows came back home.

Every mark on the wall was struck out. No mark was left, so no cow was left outside.

So, they had 47 cows.

The marks are in groups of five. There are 9 groups of five and 2 more marks.

They were worried because 2 marks were still left on the wall. So 2 cows had not come back, but they could not see them outside.

45 cows had reached home.

There were 47 marks. 2 marks were not struck out.

Keep cow marks and sheep marks apart.

Strike out one mark each time an animal comes back.

Count the letters in each name.

• First team : elephant
• Letter count : 8
• Second team : ox
• Letter count : 2

Yes. The first team’s captain is elephant, with 8 letters. These animals have longer names:

9, 10 and 12 are all more than 8.

Neither name is longer. Both names have 6 letters.

So the two names are equally long.

Om, Ravi, Aman, Anita, Arjun, Kavita, Sarita, Kamlesh.

Count the letters in each name.

• Tick ✓ Kamlesh — 7 letters, the most.
• Cross ✗ Om — 2 letters, the fewest.

If two names have the same count, tick (or cross) both.

The starting letter is the first letter of your name.

Sample answer: My name is Anita. The starting letter is A.

Sample answer: My name, Anita, starts with A. Aman, Anita and Arjun start with A.

So 3 names have the same starting letter as mine.

The most used starting letter is A. 3 names begin with it.

The ending letter is the last letter of a name. Sample answer:

3 names end with a: Anita, Kavita, Sarita. 2 names end with n: Aman, Arjun.

Sample answer: The starting letters used are A, K, O, R, S.

Letters not used at the start: B, C, D, E, F, G, H, I, J, L, M, N, P, Q, T, U, V, W, X, Y, Z.

Its number name has 9 letters.

Check Teji’s: forty (5) + three (5) = 10 letters.

Roll number 25 → cards Twenty and Five.

• My roll number is 25.
• Its number name has 10 letters.

Now do the same with your own roll number.

Count only the letters. Do not count the dash (-) in forty-five.

fifty (5) + six (3) = 8 letters. These numbers also have 8 letters:

thirteen (13), fourteen (14), eighteen (18) and nineteen (19) also have 8 letters.

73, 77 and 78. Each name has 12 letters.

73, 77 and 78 (12 letters each).

I am 98 (ninety-eight).

93 and 97 also fit the letter clues, but 98 is the nearest to 100.

I am 70 (seventy).

seventy has only 7 letters. It is one word. All the other numbers from 63 to 78 need two words.

• “My name has one word and 3 letters. I come just after 9. Who am I?” → 10 (ten)
• “My name has two words and 8 letters. I am the biggest such number. Who am I?” → 66 (sixty-six)

Jojo has grouped the cards by flying.

• Group 1: kite, aeroplane, bird, fly, drone — these can fly.
• Group 2: mobile phone, fish, bulb, book, mouse — these cannot fly.

Teji and Jojo used different rules on the same cards.

Ask about each object: does it work only with electricity?

4 + 4 = 8 objects in all.

Rule — do we use it when we sleep?

Another rule: made of cloth (Pillow, Blanket) and not made of cloth (TV, Chair, Lamp, Bed, Clock, Fan).

Every object must go into one group.

(a class of 30 children):

Count the children with each hair style. Then add all the numbers.

The total must be the number of children in your class.