Chapter 1: What's in a Name?

Write down the names of four of your classmates. Count the number of letters in each name. Which name is the longest, which is the shortest, and what is the difference between the two?

In a class of 20 children, 5 names start with the letter 'A', 3 with 'R', 4 with 'S', and 8 with other letters. How many names start with 'A', 'R', or 'S' altogether? What fraction of names start with 'A'?

How can you organize all the students' names in your class by the number of letters (3 letters, 4 letters, 5 letters, 6+ letters) using a tally chart? Create a sample tally chart for 15 students.

In the Animal Team Game, the captain of Team 1 has the longest name and the captain of Team 2 has the shortest name. Given the list of animals: Elephant (8 letters), Ox (2 letters), Tiger (5 letters), and Deer (4 letters):
(a) Who is the captain of Team 1 and Team 2?
(b) Can you name an animal with an even longer name than Team 1's captain?

Mahesh and Kartik are comparing the number of letters in their names.
(a) Count the letters in 'Mahesh' and 'Kartik'.
(b) Who has a longer name, or are they equal?
(c) If their friend 'Venkatanarasimha' joins them, how many more letters does this name have than Mahesh?

Ankit has 35 goats and Tanya has 27 goats.
(a) How many more goats does Ankit have than Tanya?
(b) Show Tanya's goat count (27) using tally marks in standard bundles of 5.
(c) If their flock also includes 14 black sheep and 19 white sheep, what is the total number of sheep?

In the number climb from 1 to 99, count the letters in the spelling of each number name (do not count hyphens):
(a) 'Seventy-eight'
(b) 'Ninety-three'
(c) 'Twenty-two'
Which of these three has the maximum number of letters, and which has the minimum?

In an animal team game, the following animal names are listed: Elephant, Ox, Deer, Kangaroo, Lion, Fox.
(a) Count the letters in each animal's name.
(b) Which animal has the longest name and which has the shortest?
(c) How many letters longer is the longest name compared to the shortest?

In a class of 24 children, the teacher records their names: 6 start with 'S', 5 start with 'A', 4 start with 'M', 3 start with 'R', and 6 start with other letters.
(a) Which letter is the most common starting letter?
(b) How many names start with either 'S' or 'A'?
(c) Represent the counts for 'S', 'A', 'M', and 'R' using tally marks in bundles of 5.

Look at the name 'AMITABH':
(a) How many total letters are in this name?
(b) How many vowels (A, E, I, O, U) are present?
(c) How many consonants are present?
(d) What fraction of the letters are vowels?

Some words read the same forward and backward, such as 'NOON' or 'RADAR'.
(a) Check if the names 'KANAK' and 'NAMAN' read the same backwards.
(b) Write down the letters of 'ROHIT' in reverse order. Does it form the same word?

Arrange the following names from shortest to longest (ascending order): Sunita (6), Ali (3), Dharmendra (10), Priya (5), Raj (3), Meenakshi (9).

In a class, the teacher asked children with 4-letter names to stand in Line 1, 5-letter names in Line 2, and 6-letter names in Line 3. If there are 8 children in Line 1, 12 in Line 2, and 7 in Line 3:
(a) Which line has the largest number of children?
(b) How many children are there in all three lines combined?

If each letter in a name is worth 2 points, find the total points for the name 'KAVITA'. If 'DEEPAK' is scored the same way, who gets more points and by how much?

Find three 4-letter words that end with the letters 'O-O-K'. Write their names and count total letters.

In a secret alphabet code, A=1, B=2, C=3, D=4, E=5. What is the sum of the letter values for the word 'B E D'?

Ritu's family has 4 members: Father (Ramesh - 6 letters), Mother (Sunita - 6 letters), Brother (Aman - 4 letters), and Ritu (4 letters).
(a) What is the total number of letters in all 4 names?
(b) What is the average number of letters per person?

State whether each statement is True or False:
(a) The name 'AARAV' has more vowels than consonants.
(b) 'INDIA' has exactly 5 letters.
(c) A tally mark bundle of 5 is drawn as five vertical lines without any cross line.

In Chapter 1 ('What's in a Name?'), a student solves an exercise problem: If 1 packet contains 12 items, how many items are in 4 such packets? Explain using repeated addition and multiplication.

In 'What's in a Name?', how do you verify your mathematical calculations? Give an example using two numbers that add up to 100.

Solve mentally:
(a) 25 + 75 = ?
(b) 150 - 60 = ?
(c) Double of 45 = ?
(d) Half of 80 = ?

A school library received 3 boxes of mathematics activity books. Each box contained 25 books. During the week, 38 books were distributed to Grade 3 children. How many books remain in the library?

Observe the sequence related to 'What's in a Name?': 12, 24, 36, 48, ___, ___. Find the next two terms and state the mathematical rule.

Estimate whether each measurement is greater than or less than 1 metre:
(a) Length of your classroom pencil.
(b) Height of your classroom teacher.
(c) Width of your mathematics textbook.
(d) Length of the school blackboard.

A table shows student preferences for fruit: Apple (15), Banana (22), Mango (35), Orange (18).
(a) Which fruit is preferred by the maximum number of students?
(b) How many more students prefer Mango over Banana?
(c) What is the total number of students surveyed?

Draw a line of symmetry through each shape:
(a) A rectangle
(b) An equilateral triangle
(c) A circle.
How many lines of symmetry does a circle have?

In a 3x3 magic square, the sum of each row, column, and diagonal is 15. The center number is 5. What numbers go in the opposite corners if one corner is 2?

Rani visits a stationery shop and buys: 2 Pencils at ₹5 each, 1 Eraser for ₹3, and 1 Notebook for ₹25. Prepare a simple cash memo showing total bill and change returned from a ₹50 note.

True or False:
(a) 1 kilometre is equal to 1000 metres.
(b) 500 millilitres is equal to half a litre.
(c) A square has 4 equal straight edges and 4 right-angled corners.