Smartick is a fun way to learn math!

Content about addition and subtraction in elementary mathematics. Exercises, tutorials, and problems with addition and subtraction in elementary mathematics. Here you will find posts about adding and subtracting to make learning mathematics easier and more fun.

Apr02

## Learn to Add Using the Rekenrek

In today’s post we’re going to learn to add using the Rekenrek abacus to help us. We saw in a previous post that the rekenrek is a flexible learning material because it can be adapted to different calculation strategies. Today we’re going to talk in detail about how to use the rekenrek to help demonstrate some of the […]

Dec15

## Completing Additions, Subtractions, Multiplications and Divisions

In today’s entry, we’re going to talk about some of the exercises that appear during the Smartick daily sessions. They may appear complex and convoluted at times, but they have great didactic potential. They are exercises that require the student to complete a basic operation (addition, subtraction, multiplication, or division). These activities help the student understand different […]

Jul24

## Round and Estimate Subtraction Problems

In this post, we are going to learn how to round and use estimation in subtraction problems. Mastering this skill is helpful in verifying that an exact answer is of the correct order of magnitude and also in determining whether an answer is reasonable or not. Round and Estimating Subtraction Problems in Tens Round the […]

Jul07

## Review Vertical Subtraction with Examples

In today’s post, we are going to review vertical subtraction. As always, we are going to review with examples that will help us to understand what vertical subtraction consists of and how to solve such problems. Before we begin, let’s review the material that we’ll use to subtract. We’ll use individual cubes to represent 1s. […]