Week 8WednesdayColumn Subtraction
1Column Subtraction

Line up the columns. Subtract ones first, then tens.

68
- 45
88
- 54
78
- 36
87
- 15
2More Practice

Keep your columns straight!

77
- 42
89
- 38
88
- 16
69
- 24
3Three Numbers

Subtract from left to right. Ones column first, then tens.

99

- 34

- 22

99

- 41

- 23

4Find the Error

One of these is wrong. Find it, explain the error, and fix it.

68

- 45

23

✓ or ✗?

If wrong, fix:

78

- 36

43

✓ or ✗?

If wrong, fix:

5Challenge: Create Your Own

Create Your Own

Make a column subtraction problem where the answer is 34. Write it and solve it.

-

34