Two-Digit Subtraction With Regrouping: Overview
In learning two-digit subtraction with regrouping, students will make the transition from thinking of numbers as ones to thinking of numbers as tens and ones. They will use mental math and basic facts to subtract tens, as well as using a hundred chart to subtract tens by counting back from other numbers without regrouping. Students will be subtracting in both the horizontal and vertical format in this course. Students will understand the concept...