Add three or more numbers up to two digits each
key points :
❤️ Add Step by Step
👉 Add the first two numbers, then add the next number.
Example:
8 + 5 + 3
→ 8 + 5 = 13
→ 13 + 3 = 16 🎉
🔢 Add from Left to Right or Right to Left — Both Work!
📌 Start anywhere, just add one number at a time.
➡️ 12 + 7 + 4
➡️ 12 + 7 = 19
➡️ 19 + 4 = 23
🎯 Look for Easy Pairs
✨ Find numbers that make 10, 20, or 30.
Example:
6 + 4 + 9
→ 6 + 4 = 10
→ 10 + 9 = 19 😃
🌟 Add Tens and Ones Separately
💡 Break numbers into tens and ones.
Example:
23 + 15 + 12
→ Tens: 20 + 10 + 10 = 40
→ Ones: 3 + 5 + 2 = 10
→ Total = 40 + 10 = 50 🎉
🧠 Regroup When Needed
If ones add up to 10 or more, regroup!
Example:
7 + 8 + 6
→ 7 + 8 = 15
→ 15 + 6 = 21
(15 is already regrouped!) 🔄
🎈 Order Does NOT Change the Answer
✨ You can change the order of numbers.
Example:
4 + 9 + 6 =
9 + 4 + 6 =
6 + 9 + 4 =
All equal 19! 🌟
🟩 Use Fingers, Number Line, or Blocks
🧱 Tools make adding easier.
✔️ Counting blocks
✔️ Number lines
✔️ Fingers
✔️ Beads
Use whatever helps! 😊
🎉 Check Your Work
🔍 Add the numbers again in a different order to make sure the answer is correct.
Example:
5 + 7 + 3 = 15
Try:
7 + 3 + 5 = 15 ✔️
Learn with an example
Add. 47 + 8 + 7 =
Add the ones. Add 7 + 8 + 7. Remember to carry over.
2
47
8
+ 7
2
Add the tens. Add 2 + 4.
2
47
8
+ 7
2
The sum is 62.
Add. 23 + 18 + 5 =
Add the ones. —> Add 3 + 8 + 5. Remember to carry over.
1
23
18
+ 5
6
Add the tens. —> Add 1 + 2 + 1.
1
23
18
+ 5
46
The sum is 46.
Add. 1 + 81 + 6 =
Add the ones. Add 1 + 1 + 6.
1 + 81+ 6 = 8
Add the tens. Bring down the 8.
1 + 81 + 6 = 88
The sum is 88.
Let’s practice!🖊️

