Fun with Numbers – Class 2 Maths Chapter 3 Notes & NCERT PDF

Class 2MathematicsChapter 3NCERT book: Joyful Mathematics - Class 2

Notes and a simple summary of Chapter 3 of the NCERT Class 2 Mathematics book, with the official chapter PDF, flashcards, an MCQ quiz and an AI tutor for your doubts.

🎧 Listen to the content

Chapter 3: Fun with Numbers

Introduction

Fun with Numbers helps children move around numbers up to 100 with confidence. It uses a ginladi (a bead counting frame), a number strip, a number line and a 100 number chart, and it is full of patterns and games. Children learn to count forward, backward and in jumps (skip counting).

What's in this Chapter

The Ginladi: children count the beads on the ginladi, write numbers on the blank cards, and place number cards such as 38, 44, 58, 65 and 98 on it.

Number strip: a butterfly, a honey bee, a squirrel and a frog move forward and backward on a strip. For example, the squirrel jumps 2 steps back, 5 steps forward and 3 steps back.

Guess my Number: one child thinks of a number and others ask yes/no questions, such as "Is it more than 50?", with at most 10 questions.

Guess my Place: ants sit on a number line between 20 and 80; children draw an ant on 65 and a sugar cube on 79.

Jumpy the frog: patterns such as 1, 4, 7, 10, 13 … (jumps of 3), 40, 45, 50, 55 … (jumps of 5) and 50, 60, 70, 80, 90 (jumps of 10).

Skip counting on the number chart: mark skips of 2 and of 5 and find the numbers common to both. Children jump on a number line on the ground to answer questions like "Start from 10 and jump in tens — will you land on 100?" (Yes.)

Jumping backward: 10, 9, 8 …; 40, 37, 34 …; 70, 65, 60 …; 100, 90 …; 100, 80 ….

Lakshanya's number window: on the 100 chart, the number above is 10 less, the number below is 10 more, the number on the left is 1 less and on the right is 1 more. If the centre is 28, then 18 is above, 38 below, 27 on the left and 29 on the right.

Exploring Patterns: growing block patterns 1, 3, 6 … and 1, 4, 9 ….

Bingo! Fill a 3 × 4 grid with numbers from 2 to 12, throw two dice and cross the sum.

Kikku rabbit jumps on tiles 1, 4, … and his mother jumps 1, 6, 11, …; extend 5, 10, 15 …; 7, 14, 21 …; 1, 7, 13 ….

Key Ideas

Numbers can be shown on a ginladi, a number strip, a number line and a number chart.

Skip counting means counting in equal jumps, like 2s, 5s or 10s.

Moving forward adds; moving backward takes away.

On a 100 chart: up = 10 less, down = 10 more, left = 1 less, right = 1 more.

A pattern follows a rule; once we find the rule we can extend it.

Activities from the Book

Making a number line on the ground and jumping on it.

Guess my Number with yes/no questions.

Bingo with two dice.

The number window on the 100 chart.

Words to Learn

Forward (आगे) and Backward (पीछे)

Number line (संख्या रेखा)

Pattern (पैटर्न / क्रम)

Skip counting (उछल गिनती)

Before (पहले) and After (बाद में)

Common (साझा) — found in both

Dice (पासा)

Ginladi (गिनलड़ी) — a bead frame for counting

Tips for Parents & Teachers

Draw a number line with chalk on the floor and let the child jump in 2s, 5s and 10s.

Play Guess my Number during a car ride or at dinner.

Use a 100 chart at home and play "What is 10 more? What is 1 less?"

Let children invent their own patterns with beads or blocks.

Common Mistakes

Counting the starting number as the first jump on the number line.

Mixing up "10 more" (down on the chart) with "1 more" (right on the chart).

Continuing a pattern without first checking the rule — e.g. writing 1, 4, 7, 8 instead of 10.

💡 Key Learning Points

✓Count forward and backward using a ginladi, number strip and number line.
✓Skip count in 2s, 3s, 5s and 10s and find numbers common to two skip counts.
✓Find 10 more, 10 less, 1 more and 1 less on a 100 number chart.
✓Recognise and extend number and block patterns.
✓Ask and answer yes/no questions to guess a number logically.

👨‍🏫 Teaching Tips

→Make a number line on the ground and let children jump on it in different steps.
→Use a ginladi or bead string so children see and touch each number.
→Play Guess my Number, limiting children to 10 yes/no questions.
→Use the number window on a 100 chart to show 10 more, 10 less, 1 more and 1 less.
→Let children develop their own strategy for choosing numbers in Bingo.
→Ask children to extend patterns and then make up their own patterns for friends.
→Discuss why some jumps land on a number and others do not (e.g. from 4 in twos you never land on 17).

📋 Assessment Questions

Can the child continue the patterns 1, 4, 7 … and 40, 45, 50 … correctly?
Can the child say the number that is 10 more and 1 less than a given number on the chart?
Can the child place numbers such as 65 and 79 correctly on a number line?
Can the child find numbers common to skip counts of 2 and 5?
Can the child count backward in steps of 5 and 10?

Ask the AI tutor about Class 2 Mathematics Chapter 3

Get question answers, important questions, a quick MCQ quiz or a simple explanation of “Fun with Numbers”. Free — sign in with Google.

How the AI tutor works →

👩‍🏫 Class 2 Mathematics classes near you — online or at home

Prefer a real teacher? TalentJR teachers take live online classes anywhere in India and visit homes in selected cities. Tell us what you need and our team will call you with timings and fees.

Live online classesSmall groups or 1:1 with a teacher, from home, any city.
Teacher at homeA TalentJR teacher visits your home (selected cities).
At a centreClasses at a TalentJR partner centre near you, where available.

Keep learning

← Previous: Chapter 2Shapes Around Us Next: Chapter 4 →Shadow Story