# Archive List for Elementary Math（2 / 3Page）

## Adding and Subtracting Fractions: Same and Different Denominators

When calculating fractions, we often do addition and subtraction. When it comes to calculating fractions, addition and subtraction are the most difficult. They are more difficult than multiplication. The way of doing addition and subtraction of fractions is different from the common way. Also, the calculation method changes depending on whether the denominators are the […]

## Addition and Subtraction of Numbers up to 10 in Elementary School Math

In elementary school arithmetic, we first learn addition and subtraction, using numbers from 1 to 10. In order to perform addition and subtraction, we need to understand numbers. We have to know the meaning of the numbers from 1 to 10 and what they represent. This will help you calculate the numbers. First, let’s learn […]

## Simplifying Fractions and Finding Least Common Denominators

In calculating fractions, we often simplify fractions or find a common denominator. Even if you get an answer, it will not be correct if you do not simplify it. Also, you can’t add or subtract fractions without finding the common denominator. When calculating fractions, you need to understand the concept of simplifying fractions and common […]

## Basics of Fractions: Concept of Numerator and Denominator, Proper Fractions, Improper Fractions, and Mixed Fractions

Fractions are used frequently in our daily lives. So if you don’t understand the concept of fractions, you won’t be able to do calculations in your daily life. Fractions can be used to express numbers smaller than one, and they are used to divide things into multiple parts. There are many situations where fractions are […]

## Even and Odd Numbers: How to Distinguish and Remember in Math

In elementary school math, we study even numbers and odd numbers. So what are even numbers and odd numbers? And how can we distinguish between even and odd numbers? The concepts of even and odd numbers are often used in our daily lives. For example, in programming, we use even and odd numbers. Also, we […]

## Factors and Multiples: Greatest Common Divisor and the Least Common Multiple

In elementary school arithmetic, we learn factors (or divisors) and multiples. In our daily lives, we use factors and multiples frequently. So, it is important to understand what they are. In both cases, we use multiplication and division to solve problems. Although the concept is different, we use similar methods to solve the problems. In […]

## Division of Decimals: Quotient and Remainder Calculations and Long Division

Decimals are taught in elementary school mathematics. After learning multiplication with decimals, you need to be able to do division. When calculating decimals, a division is a bit more complicated. This is because it is not always divisible. You have to calculate until you can divide or use the remainder to get the answer. It […]

## Multiplication of Decimals: Decimal Point Position and How to Solve Problems

In elementary school, we learn decimals in arithmetic. Since multiplication is a common problem in decimals, you need to be able to do multiplication. Multiplication of decimals is the same as doing long multiplication. You need to pay attention to the position of the decimal point, but there is no major difference except that there […]

## Adding and Subtracting Decimals: How to Calculate in Math

In elementary school math, students learn how to calculate decimals, including numbers smaller than one. We use decimals frequently in our daily lives. First, let’s understand what decimals are. By learning how decimals work, we can understand when to use them. Also, we need to be able to add and subtract decimals. Addition and subtraction […]

## Rounding Numbers: Elementary Math with Approximate Numbers

Instead of using exact numbers, we often use rough numbers. It is called approximate numbers, and we often use rough numbers in our daily lives. A concept that is used in rough numbers is rounding. By rounding off a number, we use a rough number. Why do we need to use rough numbers instead of […]