Chapter 3 of 13
Chapter 3: Addition
One More, How Many Altogether, Adding Pictures & Dominoes | CBSE Session 2026–27
Core Pedagogical Competencies & Concepts
- Understanding addition as putting together or adding to.
- The 'One More' concept (1 more than 4 is 5).
- Using the plus (+) and equal to (=) signs correctly.
- Addition facts up to 9 and zero in addition.
- Solving pictorial addition problems and number line addition.
All Textbook Exercises & In-Text Tasks (22 Questions)
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Q1
Textbook Exercise • One More Parrot Rhyme
Two little green parrots looking for a mate; one more joins in, making them: ___.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 2 + 1 = 3 parrots (Three).
• 2 + 1 = 3 parrots (Three).
CBSE Step-by-Step Marking Scheme
2 + 1 = 3
2 M
Q2
Textbook Exercise • Three Parrots One More
Three little green parrots singing in a tree; one more joins in, making them: ___.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 3 + 1 = 4 parrots (Four).
• 3 + 1 = 4 parrots (Four).
CBSE Step-by-Step Marking Scheme
3 + 1 = 4
2 M
Q3
Textbook Exercise • Four Parrots One More
Four little green parrots sitting on the floor; one more joins in, making them: ___.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 4 + 1 = 5 parrots (Five).
• 4 + 1 = 5 parrots (Five).
CBSE Step-by-Step Marking Scheme
4 + 1 = 5
2 M
Q4
Textbook Exercise • How Many Altogether (Cows)
2 cows and 1 cow is equal to how many cows?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 2 + 1 = 3 cows.
• 2 + 1 = 3 cows.
CBSE Step-by-Step Marking Scheme
2 + 1 = 3 cows
2 M
Q5
Textbook Exercise • Children Playing
3 children are playing in the sand. 2 more children join them. How many children altogether?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 3 + 2 = 5 children altogether.
• 3 + 2 = 5 children altogether.
CBSE Step-by-Step Marking Scheme
3 + 2 = 5 children
2 M
Q6
Textbook Exercise • Flowers in Vases
Vase A has 5 flowers. Vase B has 2 flowers. How many flowers altogether?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 5 + 2 = 7 flowers.
• 5 + 2 = 7 flowers.
CBSE Step-by-Step Marking Scheme
5 + 2 = 7 flowers
2 M
Q7
Textbook Exercise • Birds on Branch
4 birds sit on a branch. 2 more birds fly in and sit. How many birds altogether?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 4 + 2 = 6 birds.
• 4 + 2 = 6 birds.
CBSE Step-by-Step Marking Scheme
4 + 2 = 6 birds
2 M
Q8
Textbook Exercise • Marbles in Hand
Rahul has 3 marbles in his left hand and 2 marbles in his right hand. How many marbles does he have in all?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 3 + 2 = 5 marbles.
• 3 + 2 = 5 marbles.
CBSE Step-by-Step Marking Scheme
3 + 2 = 5 marbles
2 M
Q9
Textbook Exercise • Adding Zero (Balloons)
A boy holds 3 balloons. The other boy holds 0 balloons. How many balloons do both have together?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 3 + 0 = 3 balloons.
• 3 + 0 = 3 balloons.
CBSE Step-by-Step Marking Scheme
3 + 0 = 3 balloons
2 M
Q10
Textbook Exercise • Zero and Four
Solve: 0 + 4 = __.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 0 + 4 = 4.
• 0 + 4 = 4.
CBSE Step-by-Step Marking Scheme
0 + 4 = 4
2 M
Q11
Textbook Exercise • Adding Dots
Add dots: (••) + (••••) = ?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 2 + 4 = 6 dots.
• 2 + 4 = 6 dots.
CBSE Step-by-Step Marking Scheme
2 + 4 = 6
2 M
Q12
Textbook Exercise • Vertical Addition
Add vertically:
4
+ 2
---
[2 Marks]
4
+ 2
---
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
4
+ 2
---
6
4
+ 2
---
6
CBSE Step-by-Step Marking Scheme
Answer 6
2 M
Q13
Textbook Exercise • Add 3 and 5
Add:
3
+ 5
---
[2 Marks]
3
+ 5
---
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
3
+ 5
---
8
3
+ 5
---
8
CBSE Step-by-Step Marking Scheme
Answer 8
2 M
Q14
Textbook Exercise • Add 4 and 0
Add:
4
+ 0
---
[2 Marks]
4
+ 0
---
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
4
+ 0
---
4
4
+ 0
---
4
CBSE Step-by-Step Marking Scheme
Answer 4
2 M
Q15
Textbook Exercise • Horizontal Addition
Find the sums:
(a) 2 + 3 = __
(b) 7 + 1 = __
(c) 3 + 4 = __
[3 Marks]
(a) 2 + 3 = __
(b) 7 + 1 = __
(c) 3 + 4 = __
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• (a) 2 + 3 = 5
• (b) 7 + 1 = 8
• (c) 3 + 4 = 7
• (a) 2 + 3 = 5
• (b) 7 + 1 = 8
• (c) 3 + 4 = 7
CBSE Step-by-Step Marking Scheme
2+3 = 5
1 M
7+1 = 8
1 M
3+4 = 7
1 M
Q16
Textbook Exercise • Match the Pairs
Match the sums that give 7: (a) 4 + 3, (b) 5 + 2, (c) 6 + 1.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 4 + 3 = 7
• 5 + 2 = 7
• 6 + 1 = 7
• All three expressions equal 7.
• 4 + 3 = 7
• 5 + 2 = 7
• 6 + 1 = 7
• All three expressions equal 7.
CBSE Step-by-Step Marking Scheme
All equal 7 verified
2 M
Q17
Textbook Exercise • Missing Addend
Fill in the missing numeral: 5 + __ = 7.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 7 - 5 = 2.
• 5 + 2 = 7.
• 7 - 5 = 2.
• 5 + 2 = 7.
CBSE Step-by-Step Marking Scheme
Missing number is 2
2 M
Q18
Textbook Exercise • Missing Addend to 9
Fill in the blank: __ + 3 = 9.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 9 - 3 = 6.
• 6 + 3 = 9.
• 9 - 3 = 6.
• 6 + 3 = 9.
CBSE Step-by-Step Marking Scheme
Missing number is 6
2 M
Q19
Textbook Exercise • Adding to Make 8
Write any two pairs of numbers that add up to 8.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• Pair 1: 4 + 4 = 8
• Pair 2: 5 + 3 = 8 (or 6 + 2, 7 + 1).
• Pair 1: 4 + 4 = 8
• Pair 2: 5 + 3 = 8 (or 6 + 2, 7 + 1).
CBSE Step-by-Step Marking Scheme
Two valid pairs
2 M
Q20
Word Problem • Ants in a Line
6 ants are marching towards a sugar crystal. 2 more ants join the line. How many ants in the line now?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 6 + 2 = 8 ants.
• 6 + 2 = 8 ants.
CBSE Step-by-Step Marking Scheme
6 + 2 = 8 ants
2 M
Q21
Word Problem • Frogs on Stones
3 frogs sit on Stone A. 3 frogs sit on Stone B. How many frogs in total?
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 3 + 3 = 6 frogs.
• 3 + 3 = 6 frogs.
CBSE Step-by-Step Marking Scheme
3 + 3 = 6 frogs
2 M
Q22
Competency Review • Commutative Property
Does 2 + 5 give the same answer as 5 + 2? Show the working.
[2 Marks]
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
• 2 + 5 = 7
• 5 + 2 = 7
• Yes, both equal 7. The order of adding numbers does not change the total.
• 2 + 5 = 7
• 5 + 2 = 7
• Yes, both equal 7. The order of adding numbers does not change the total.
CBSE Step-by-Step Marking Scheme
Both equal 7
1 M
Order does not change sum
1 M
🌟 NEP 2020 Competency-Based Case Study
Cow in the Meadow Case Study
Two cows are grazing in the green meadow. One more cow comes and joins them to graze sweet grass.
Analytical Task: How many cows are grazing altogether? If two more calves join, what is the new total?
Evaluation & Model Answer:
1. 2 cows + 1 more cow = 3 cows grazing altogether.
2. With 2 more calves: 3 + 2 = 5 animals altogether.
2. With 2 more calves: 3 + 2 = 5 animals altogether.
Rubric: 1.5 M for 2 + 1 = 3 cows + 1.5 M for 3 + 2 = 5 animals