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 ...

Want to help your second-grader master the basics of 2nd grade math? Here are some of the skills your child will be learning in the classroom. Count forward within 1000. Count by 5s. Count and add by ...

The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

XtraMath helps kids gain fluency in addition, subtraction, multiplication, and division. The program is conceptually similar to flash cards. Credit: Ian Moore / mashable As COVID-19 was spreading last ...

Subtraction is taking away one number from another. Lilly has 4 balloons, but then one flys away. How many does she have left? You can use subtraction to find the answer. First there were 4 balloons.

Want to help your fifth-grader master math? Here are some of the skills your fifth-grader will be learning in the classroom. Explain or illustrate how you solved this problem. Tip: Highlight ...