Addition For Class-1

Class 1 Addition

What is addition?

Addition means putting numbers together to find the total.

What Students Learn in Grade 1 Addition

• 1) Introduction to addition
• 2) Addition using pictures and objects
• 3) Adding 1-digit numbers
• 4) Adding 2-digit numbers (without carry)
• 5) Tens and ones addition
• 6) Word problems on addition
• 7) Properties of addition (basic level)

Introduction to addition

Addition is one of the basic operations in mathematics.

For example: 4 + 3 = 7

Students can understand addition as:

• 1) Joining objects
• 2) Counting forward
• 3) Combining groups

Addition Using Pictures and Objects

This method helps students visualize addition, making the concept clearer and more meaningful.

Example:🍎🍎 + 🍎🍎🍎

• Step 1: Count first group → 2 apples
• Step 2: Count second group → 3 apples
• Step 3: Count all together → 5 apples
• ✔️ So, 2 + 3 = 5

Adding 2-Digit Numbers and 1-Digit Numbers

Example: 24 + 5

• Step 1: Add ones → 4 + 5 = 9
• Step 2: Tens remain same → 2
• Answer = 29

Addition by Tens and Ones

In Grade 1, students learn that numbers are made of tens and ones.

Example:23 = 2 tens + 3 ones

Now add: 23 + 14

• Step 1: Add ones → 3 + 4 = 7
• Step 2: Add tens → 2 + 1 = 3 
• Answer = 37

Properties of Addition

• 1) Ordering Property: Changing the order of numbers does not change the sum.
• Example: 3 + 5 = 8
  Changing Order 5 + 3 = 8
  ✔️ Both answers are the same.
• 2) Addition with Zero Property: When we add zero to any number, the number stays the same.
• Example: 7 + 0 = 7
  Example: 0 + 9 = 9
  ✔️ Zero does not change the number

Addition Story Problems

A box has 50 chocolates. Another box has 25. How many chocolates in both boxes?

• Solution:
• Number of chocolates first box has = 50
• Number of chocolates second box has = 25
• Total Number of chocolates = 50+25 = 75

FAQs