Class 1 Mathematics Complete Study Material for Website
Introduction
Mathematics is one of the most important subjects for Class 1 students. It helps children develop counting, problem-solving, logical thinking, and everyday calculation skills. The Class 1 Mathematics curriculum focuses on numbers, basic operations, shapes, patterns, measurement, time, and practical activities.
Chapter 1: Numbers 1 to 100
Learning Objectives
- Count numbers from 1 to 100
- Read and write numbers
- Identify missing numbers
- Understand number sequence
Numbers 1–100
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
11, 12, 13, 14, 15, 16, 17, 18, 19, 20
21, 22, 23, 24, 25, 26, 27, 28, 29, 30
31, 32, 33, 34, 35, 36, 37, 38, 39, 40
41, 42, 43, 44, 45, 46, 47, 48, 49, 50
51, 52, 53, 54, 55, 56, 57, 58, 59, 60
61, 62, 63, 64, 65, 66, 67, 68, 69, 70
71, 72, 73, 74, 75, 76, 77, 78, 79, 80
81, 82, 83, 84, 85, 86, 87, 88, 89, 90
91, 92, 93, 94, 95, 96, 97, 98, 99, 100
Chapter 2: Number Names
Number Names 1–20
1 – One
2 – Two
3 – Three
4 – Four
5 – Five
6 – Six
7 – Seven
8 – Eight
9 – Nine
10 – Ten
11 – Eleven
12 – Twelve
13 – Thirteen
14 – Fourteen
15 – Fifteen
16 – Sixteen
17 – Seventeen
18 – Eighteen
19 – Nineteen
20 – Twenty
Practice
21 – Twenty-One
22 – Twenty-Two
23 – Twenty-Three
24 – Twenty-Four
25 – Twenty-Five
26 – Twenty-Six
27 – Twenty-Seven
28 – Twenty-Eight
29 – Twenty-Nine
30 – Thirty
Chapter 3: Counting Objects
Count the Objects
Example 1
🍎 🍎 🍎 🍎 🍎
Answer = 5 Apples
Example 2
✏️ ✏️ ✏️ ✏️ ✏️ ✏️ ✏️
Answer = 7 Pencils
Example 3
🌸 🌸 🌸 🌸 🌸 🌸 🌸 🌸 🌸 🌸
Answer = 10 Flowers
Practice
Count:
- 15 Books
- 20 Balls
- 25 Toys
- 30 Trees
- 50 Stars
Chapter 4: Before, After and Between Numbers
Examples
Before 10 = 9
After 10 = 11
Between 5 and 7 = 6
Before 20 = 19
After 20 = 21
Between 40 and 42 = 41
Practice
- Before 15 = ___
- After 25 = ___
- Between 30 and 32 = ___
- Before 50 = ___
- After 70 = ___
Chapter 5: Greater Than, Less Than and Equal To
Symbols
Greater Than
< Less Than
= Equal To
Examples
10 > 5
5 < 10
8 = 8
20 > 15
15 < 20
12 = 12
Practice
- 7 ___ 9
- 15 ___ 10
- 20 ___ 20
- 8 ___ 3
- 5 ___ 7
Chapter 6: Ascending and Descending Order
Ascending Order
Smallest to Biggest
2, 4, 6, 8, 10
5, 10, 15, 20
Descending Order
Biggest to Smallest
10, 8, 6, 4, 2
20, 15, 10, 5
Practice
Arrange:
12, 8, 5, 20
35, 10, 50, 25
Chapter 7: Addition
What is Addition?
Addition means putting things together.
Examples
2 + 3 = 5
4 + 5 = 9
6 + 2 = 8
7 + 1 = 8
8 + 2 = 10
10 + 5 = 15
12 + 8 = 20
15 + 5 = 20
20 + 10 = 30
25 + 5 = 30
Word Problems
- Ravi has 3 apples. Mother gives him 2 more. How many apples now?
Answer = 5
- There are 5 birds on a tree. 4 more come. Total birds?
Answer = 9
Chapter 8: Subtraction
What is Subtraction?
Subtraction means taking away.
Examples
5 – 2 = 3
10 – 5 = 5
15 – 5 = 10
20 – 10 = 10
25 – 5 = 20
30 – 10 = 20
40 – 20 = 20
50 – 25 = 25
Word Problems
- You have 10 chocolates and eat 3.
Answer = 7 chocolates left.
- There are 15 balloons. 5 burst.
Answer = 10 balloons left.
Chapter 9: Shapes
Basic Shapes
Circle
Examples:
- Coin
- Clock
- Plate
Square
Examples:
- Chessboard
- Window
- Tile
Rectangle
Examples:
- Book
- Door
- TV
Triangle
Examples:
- Pizza Slice
- Traffic Sign
- Mountain
Oval
Examples:
- Egg
- Balloon
Chapter 10: Patterns
Examples
1, 2, 3, 4, 5, ___
Answer = 6
10, 20, 30, 40, ___
Answer = 50
⭐ 🔵 ⭐ 🔵 ⭐ 🔵 ___
Answer = ⭐
Practice
5, 10, 15, 20, ___
2, 4, 6, 8, ___
Chapter 11: Measurement
Long and Short
Examples:
- Pencil
- Rope
- Stick
Heavy and Light
Heavy:
- Table
- Refrigerator
Light:
- Feather
- Paper
Tall and Short
Tall:
- Tree
- Building
Short:
- Chair
- Stool
Chapter 12: Time
Days of the Week
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday
Months of the Year
- January
- February
- March
- April
- May
- June
- July
- August
- September
- October
- November
- December
Chapter 13: Money
Indian Currency
₹1
₹2
₹5
₹10
₹20
₹50
₹100
₹200
₹500
Examples
1 Chocolate = ₹5
1 Pencil = ₹10
1 Notebook = ₹20
Chapter 14: Data Handling
Count and Record
Fruits
Apple = 5
Mango = 3
Banana = 7
Orange = 2
Questions
- Which fruit is highest?
- Which fruit is lowest?
Mathematics Activities
Activity 1
Count classroom chairs.
Activity 2
Count students in class.
Activity 3
Identify shapes around home.
Activity 4
Arrange numbers 1–50.
Activity 5
Use coins to learn money.
More Mathematics Quiz click me
- What comes after 19?
- What comes before 50?
- 5 + 4 = ?
- 10 – 2 = ?
- Shape of a coin?
- Which is greater: 15 or 12?
- How many days in a week?
- Name any two months.
- What is 20 + 10?
- What is 30 – 5?
Learning Outcomes
After completing Class 1 Mathematics, students will:
✅ Count numbers from 1–100
✅ Read and write number names
✅ Perform simple addition and subtraction
✅ Compare numbers
✅ Recognize shapes
✅ Understand patterns
✅ Learn measurement concepts
✅ Understand time and calendar
✅ Use money in daily life
✅ Develop logical thinking and problem-solving skills