🎯 Learning Intention

I am learning to: Break numbers into tens and ones to make addition easier

Success Criteria: I can partition numbers and add them step by step

Warm-Up: Breaking Apart Numbers

a) 25 = _____ + _____

b) 34 = _____ + _____

c) 47 = _____ + _____

📚 Guided Practice: Partitioning Addition

Worked Example: 26 + 15

Step 1: Break apart → 26 = 20 + 6, and 15 = 10 + 5

Step 2: Add tens → 20 + 10 = 30

Step 3: Add ones → 6 + 5 = 11

Step 4: Combine → 30 + 11 = 41

23 = _____ + _____

14 = _____ + _____

Add tens: _____ + _____ = _____

Add ones: _____ + _____ = _____

Final answer: _____ + _____ = _____

a) 35 + 27 = _____

b) 42 + 19 = _____

✏️ Independent Practice & Extension

For 28 + 16, I would break it into:

Solve 37 + 25 by making a friendly number first:

Hint: Take 3 from 25 to make 37 into 40

Sarah collected 28 stamps and her brother collected 17 stamps. How many stamps do they have altogether? Show your partitioning work.

Show 24 + 18 using jumps on a number line. Start at 24, then jump by tens and ones.