Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using addition and subtraction strategies to solve two-digit equations using ...

Students practice addition and subtraction problems without regrouping. In this lesson, students practice addition and subtraction problems without regrouping using base-10 block manipulatives and ...

Math is tough, we agree to the statement; but, not always. Math is also easy, especially for second-graders. However, there is an instance where the internet has divided over the answer of a ...