Add three numbers
Key points :
🔢 Addition means putting numbers together
When we add, we join groups to find the total.
🧮 Add the first two numbers, then add the third
Example:
2 + 3 + 1
👉 First do: 2 + 3 = 5
👉 Then: 5 + 1 = 6
🧠 Order doesn’t change the total
You can add in any order — the answer stays the same.
Example:
1 + 4 + 2 = 4 + 2 + 1
Both = 7
🎨 Use objects, drawings, or fingers
Students can use:
🧱 Blocks
🖍️ Dots
🖐️ Fingers
🍎 Real objects
to understand the addition.
😊 Look for easy groups
Sometimes making 10 helps.
Example:
6 + 3 + 1
👉 6 + 3 = 9
👉 9 + 1 = 10
🌈 Check your answer
Count all objects again to see if the total is correct.
🧸 Addition makes the number bigger
When we add three numbers, the result is always greater than the numbers we started with.
🎉 Simple Examples
⭐ 3 + 2 + 1 = 6
⭐ 5 + 1 + 1 = 7
⭐ 4 + 3 + 2 = 9
Learn with an example
🖊️Add: 2 + 5 + 2 =
Hint: Start by adding a double.
First, add the doubles 2 and 2 to make 4:
2 + 5 + 2 = ?
4 + 5 = ?
Now add 4 and 5:
4 + 5 = 9
The sum is 9.
🖊️Add: 1 + 2 + 1 =
Hint: Start by adding a double.
First, add the doubles 1 and 1 to make 2:
1 + 2 + 1 = ?
2 + 2 = ?
Now add 2 and 2:
2 + 2 = 4
The sum is 4.
🖊️Add: 3 + 2 + 2 =
Hint: Start by adding a double.
First, add the doubles 2 and 2 to make 4:
3 + 2 + 2 = ?
3 + 4 = ?
Now add 3 and 4:
3 + 4 = 7
The sum is 7.
Let’s practice!
