Q. Quick Subtraction 
- What number is 5 less than 304?
- What number is 14 less than 253?
- What number is 3 less than 2001?
- What number is 2 less than 500?
- What number is 102 less than 3000?
- Explain your strategy for solving Question E.
Unit Overview
- Daily Practice and Problems
- Home Practice
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
- Part 1: Mental Math Strategies for Subtraction
- Part 2: Subtracting with Base-Ten Pieces
- Part 3: Subtracting with the Traditional Algorithm
- Part 4: Checking with Addition
- Part 5: Showing Work with Expanded Form
- Part 6: Using Mental Math to Subtract
- Summarizing the Lesson
- Homework and Practice
- Answer Keys
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10