Chapter 2 Addition and Subtraction Concepts
2.10 Problem Solving- Use logical reasoning
2.9 checking addition and subtraction
2.8 Adding and Subtracting Money
2.7 Estimating sums and differences
Note: I made a mistake in the video and the 2nd example problem should have been subtraction rather than addition. Teachers make mistakes too! Oops!
Note: I made a mistake in the video and the 2nd example problem should have been subtraction rather than addition. Teachers make mistakes too! Oops!
