Vacation with My Nani Maa follows Chirag and Nandini as their grandmother teaches them a hidden-seeds magic trick, counts balushahi sweets, and plays addition and subtraction card games. Students practise adding and subtracting 2-digit numbers mentally and on the 100-number grid, ginladi and open number line, and solve everyday word problems using box diagrams.
What Class 3 Mathematics Chapter 4 Covers
Complements and Missing Addends: Finding how many seeds are hidden under Nani Maa’s handkerchief
Adding and Subtracting on a Number Grid: Moving across rows (+1, -1) and down/up columns (+10, -10) on a 1–100 grid
Open Number Line Strategies: Jumping in tens and ones to add and subtract 2-digit numbers
Box Diagrams for Word Problems: Representing part-part-whole story problems visually before calculating
Exercises in Chapter 4
- Let us Do & Let us Play (Pages 29–35): Complete the hidden-seeds table, play the dice addition game and jump on the number grid.
- Word Problems & Number Line Tasks (Pages 36–43): Solve 2-digit addition and subtraction stories using tens-and-ones blocks, box diagrams and number lines.
Read Class 3 Mathematics Chapter 4 Online
More Chapters
- Previous: Chapter 3: Double Century
- Next: Chapter 5: Fun with Shapes
- Hindi medium: Class 3 Maths Chapter 4 PDF in Hindi (Ganit Mela)
- All Mathematics chapters and the other Class 3 books: Class 3 NCERT books 2026-27
- All Class 1 to 12 NCERT Textbooks: NCERT Books PDF (Class 1–12)
- Every book chapter by chapter: NCERT chapter wise PDF
FAQ
How do you add 10 quickly on a 1–100 grid?
Move one box straight down in the same column; the tens digit increases by 1 while the ones digit stays the same.
What is a box diagram in addition and subtraction?
A bar model showing the two parts in smaller boxes and the total in a combined box to decide whether to add or subtract.