In this video, the teacher explains how to solve subtraction problems using an open number line. They demonstrate breaking down multi-digit numbers into expanded form and subtracting one place value at a time by making jumps on the number line.
In this video, the teacher explains how to solve subtraction problems using an open number line. They demonstrate breaking down multi-digit numbers into expanded form and subtracting one place value at a time by making jumps on the number line.