Lesson 1 - To be able to add 1s, 10s, 100s and 1,000s
Lesson 2 - To be able to add two 4-digit numbers
Lesson 3 - To be able to add two 4-digit numbers one exchange
Lesson 4 - To be able to add two 4-digit numbers with more than one exchange
Lesson 5 - To be able to subtract a 4-digit number from a 4-digit number no exchange
Lesson 6 - To be able to subtract a 4-digit number from a 4-digit number one exchange
Lesson 7 - To be able to subtract a 4-digit number from a 4-digit number more than one exchange
Lesson 8 - To be able to choose and use efficient strategies for subtraction
Lesson 9 - To be able to provide estimated answers
Lesson 10 - To be able to use checking strategies
