Vacation with My Nani Maa Class 3 Maths Chapter 4 CBSE Notes 2025-26

Chirag and Nandini always enjoy visiting their Nani Maa. They learn many new things from her, and their favorite activity is listening to stories and playing number tricks. One such game involves hiding marbles; the challenge is to work out how many are hidden if you know the total and can see some on the table. This activity helps children practise subtraction and quick mental calculations, laying a foundation for understanding addition and subtraction through engaging activities.

Finding Hidden Numbers Nani Maa demonstrates a trick with seeds – some are on the table, and some are hidden. To find the number of hidden seeds, children subtract the number on the table from the total. For example, if there are 15 total seeds and 12 are visible, then 15 – 12 = 3 (hidden seeds). Practising with different totals and numbers on the table helps strengthen subtraction skills and number sense.

Balushahi Story: Addition and Subtraction in Everyday Life Nandini and Chirag each have boxes of balushahi (sweet treats), with different numbers in each box. They compare, add, and subtract to find out the total sweets, or how many more one has than the other. For example, 7 balushahi plus 5 balushahi gives a total of 12, and 7 minus 5 gives 2. These simple real-life situations encourage children to use mathematics in their daily routines.

The children also buy books for Nani Maa – 9 story books from Chirag and 7 puzzle books from Nandini. They add these: 9 + 7 = 16 books. Using objects and box diagrams is a helpful way to visualize addition, making it easier to understand how different groups combine.

Using Tens Frames and Exploring Number Facts Children solve problems such as 6 + 8, 5 + 10, 9 – 6, and 18 – 9, often using tens frames to see how numbers make 10s and 20s. This helps them realize, for instance, that 6 + 8 can be turned into (6 + 4) + 4 = 10 + 4 = 14. Visual aids reinforce mental addition and subtraction by showing how to split and combine numbers comfortably.

Math Through Play: Card and Grid Games There is a card game where players try to make addition or subtraction statements using number cards 1–10, helping students spot number relationships and build equation intuition. Another activity uses a number grid (a table of numbers up to 100). Children move their counter by the value of two dice, choosing to go forward or backward, which helps practise counting, addition, subtraction, and estimation in a playful way.

Stamps Collection: Different Ways to Add Nandini and Chirag get 15 stamps and receive 7 more, practising addition by counting in multiple ways (add 7, add 1 seven times, add 5 then 2). They then receive 30 more – total is 22 + 30 = 52. They find out how many stamps have famous faces (37) and how many have monuments by subtracting: 52 – 37 = 15. Children are encouraged to find other ways to solve such questions and to use the number line or skip counting for help.

Number Line Jumps and Skip Counting Students use the number line to mark jumps in 10s (frog and grasshopper jumps), supporting their understanding of counting and simple addition/subtraction. For example, jumping from 7 to 17 or from 20 to 50 in steps. This also aids children when working with larger numbers such as 30, 40, up to 100, building comfort with place value and sequences.

Add and Subtract with Number Grid and Table Jumps Using a number grid, students answer questions like “If you start at number 45 and add 34, where do you land?” This makes children practise multi-step addition, and shows how easy it is to break up numbers into tens and units when adding. Table activities with “jump 5,” “jump 6,” or “jump 9” columns allow students to recognize recurring patterns and solidify mental math fluency.

Magic Squares and Number Patterns The chapter introduces magic squares, fascinating puzzles using numbers from 1 to 9 that always add to the same sum in every row, column, and diagonal. By observing and filling in missing numbers, children deepen their reasoning and pattern-recognition skills. For example, in a classic 3x3 magic square, each row, column, and diagonal sums to 15.

Real-Life Word Problems The notes encourage students to solve word problems from daily scenarios. For instance, if Babli Didi sells 34 books on Monday and 45 on Tuesday, students add to find the total and compare to see on which day more books were sold. Other examples include adding up runs in a cricket match, counting the number of vadas sold over two days, or working out how many plants have dried if some remain.

Estimation and Comparison The chapter urges students to estimate before solving. For example, if there are 25 red radishes and 36 white radishes, students can estimate the sum will be more than 50. They can verify with addition: 25 + 36 = 61. The method teaches both quick estimation and precise calculation.

Fun with 100: The 100 Game In the 100 Game, two players take turns adding numbers between 1 and 10 to reach 100. This builds up the ability to add flexibly, strategize, and think ahead, reinforcing both mental math and an understanding of number relationships up to 100.

• Visual tools like box diagrams, number lines, tens frames, and grids make addition and subtraction easier to see and understand.
• Word problems encourage applying maths in daily life—like buying books, collecting stamps, picking vegetables, and playing games.
• Magic squares and pattern games sharpen thinking and logical reasoning.
• Estimation and checking answers help students develop confidence and accuracy.

Students are encouraged to solve, draw, and discuss their solutions, making mathematics an interactive and friendly subject. These activities help solidify addition and subtraction concepts by relating them to everyday actions and playful exercises. The chapter closes with the importance of sharing one’s thinking and using local objects for learning, making maths fun and relatable.

Class 3 Maths Chapter 4 Notes – Vacation with My Nani Maa: Quick Revision Facts

These Class 3 Maths Chapter 4 notes provide a friendly summary of all the key concepts, puzzles, and activities from NCERT’s “Vacation with My Nani Maa.” You’ll find clear examples, tables, word problems, and story-based exercises. This helps students practise both addition and subtraction in a simple, engaging manner.

Using these notes, children can quickly review important topics, strengthen number sense, and gain confidence before exams. Important tables, diagrams, and word problems are covered for fast revision and better understanding of the chapter’s main themes.