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.
Nov28
In this post, we are going to learn to analyze, think about, and solve addition problems. Usually, failure in mathematics comes from not understanding the problems that we are given. This is why we are going to analyze 5 problems which require addition to solve. Addition Problems nº 1 There were 8 cars in the […]
Continue reading »Nov18
In today’s post, we are going to learn about addition with regrouping. Addition with regrouping consists of addition problems where the answer to the calculation is 10 or a larger number. For example, 6 + 7 = 13 is a regrouping addition problem. The steps to solve regrouping addition problems are the following: If the […]
Continue reading »Oct04
In this post, we’re going to see what the commutative property is all about. Example Charles and George learned how to calculate the area of a rectangle in math class by using the base by height formula. Each of them was given a problem using the same rectangle, asking them to calculate the area. Charles […]
Continue reading »Sep26
Did you know that the associative property can help us solve problems faster? Today, we are going to learn about the associative property of addition, and the associative property of multiplication. According to the associative property, we can regroup the numbers when we add, and we can regroup the numbers when we multiply. The Associative […]
Continue reading »Sep13
In today’s post, we are going to review vertical adding. As always, we are going to review with examples that help us understand what it consists of and how it’s done. But before starting, let’s review the math cubes that we’re going to use in order to add. How do we represent a number with […]
Continue reading »Aug25
In this post, we are going to learn how to subtract. First things first, we are going to learn exactly what subtraction is. Subtraction is taking away a certain amount from another amount that we already have. Some examples of how to subtract: If we have 5 purple balls in a box, and we take […]
Continue reading »Aug12
Do you know how to solve an addition problem with regrouping? Do you know all the steps and why they’re important? Sometimes you learn how to solve math problems, but you don’t understand why you solve them in a particular way. This is why we are going to review how to solve an addition problem […]
Continue reading »Aug04
We will learn about the addition properties through an everyday situation: Preparing a backpack for school. Shall we begin? We look for an empty backpack and open it. First, we put in 3 large notebooks and then 6 small notebooks. How many notebooks are there in the bag? To answer this question, simply add the […]
Continue reading »Jul25
In this week’s post, I’m going to explain how to solve addition without regrouping. We’ll solve them in four simple steps: Write all of the numbers that you are going to add, one underneath the other. You have to make their 1s places line up in the same column, and you need to do the […]
Continue reading »Jul22
In today’s post, we’re going to learn two basic concepts of statistics: average and median. Imagine if we asked all of our classmates what grade their math grade was for this marking period. Assuming that there are 25 people in our class, we’ll collect 25 numbers: It’s a little complicated to process the numbers if […]
Continue reading »Jul08
Today, we’re going to walk through some examples of adding fractions. Before you read this post, you might want to check out a previous post where we explain how to add fractions step by step. Let’s begin with the simplest of examples: Adding Fractions with the Same Denominator For example: The only thing we need […]
Continue reading »Jul06
In this post, we are going to learn how to do addition problems with and without regrouping. How to Add without Regrouping Place the addends one on top of the other so that the place values fall in the same columns. Add each column together separately, starting with the 1s place. The sums go below each column, […]
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