Subtraction Strategies Concrete Models Subtracting a 2-Digit Number Using Base Ten Blocks Subtracting a 3-Digit Number Using Base Ten Blocks Quick Pics Subtracting a 2-Digit Number Using a Quick Pic Subtracting a 3-Digit Number Using a Quick Pic Expanded Form Subtracting a 2-Digit Number Using Expanded Form Subtracting a 3-Digit Number Using Expanded Form Number Lines Subtracting a 2-Digit Number Using an Open Number Line Subtracting a 3-Digit Number Using an Open Number Line Standard Algorithm Subtracting a 2-Digit Number Using the Standard (Traditional) Algorithm Subtracting a 3-Digit Number Using the Standard (Traditional) Algorithm Subtracting a 2-Digit Number from a 3-Digit Number Using the Standard (Traditional) Algorithm Addition Strategies Multiplication Strategies Division Strategies Home