Split Strategy Subtraction

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📚 Part 1: Understanding the Split Strategy

Remember: The split strategy breaks numbers into tens and ones to make subtraction easier!

Example: 47 - 23 = (40 + 7) - (20 + 3) = (40 - 20) + (7 - 3) = 20 + 4 = 24

1. Which shows the correct way to split 56 - 32?

(50 + 6) - (30 + 2)

(60 + 5) - (20 + 3)

(40 + 16) - (20 + 12)

2. What is the answer to 78 - 45 using the split strategy?

3. Which parts make up the split strategy? (Check all that apply)

Split both numbers into tens and ones

Subtract the tens

Subtract the ones

Add the answers together

Instructions: Use the split strategy to solve these problems. Show all your steps!

4. Calculate 64 - 31 using the split strategy.

5. Calculate 85 - 42 using the split strategy.

6. Calculate 73 - 28 using the split strategy.

7. A school has 96 students. 34 students went on a field trip. How many students stayed at school? Use the split strategy to find your answer.

8. Fill in the missing numbers to complete this split strategy calculation:

67 - 25 = (60 + ____) - (____ + 5) = (____ - ____) + (____ - ____) = ____ + ____ = ____

9. Explain in your own words why the split strategy makes subtraction easier.

10. Create your own subtraction problem and solve it using the split strategy.

My problem: _____ - _____ = _____