引き算とは？ 定義、方法、例、事実

What is Subtract? Definition, Method, Examples, Facts Parents Explore by Grade Preschool (Age 2-5) Kindergarten Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 Explore by Subject Math Program English Program More Programs Homeschool Program Summer Program Monthly Mash-up Helpful Links Parenting Blog Success Stories Support Also available on Educators Teach with Us For Teachers For Schools and Districts Data Protection Addendum Impact Success Stories Resources Lesson Plans Classroom Tools Teacher Blog Help & Support More Programs SpringBoard Summer Learning Our Library All By Grade Preschool Kindergarten Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 By Subject Math English By Topic Counting Addition Subtraction Multiplication Phonics Alphabet Vowels One stop for learning fun! Games, activities, lessons - it's all here! 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Symbol of Subtraction Regrouping in Math Solved Examples On Subtraction Practice Problems On Subtraction Frequently Asked Questions On Subtraction Subtraction: Introduction Suppose we purchase ice cream for a certain amount of money, say $\$140$, and we give $\$200$ to the cashier. Now, the cashier returns the excess amount by performing subtraction such as $200 − 140 = 60$. Then, the cashier will return $\$60$. What is exactly happening here? The answer to this question is subtraction. Recommended Games Break into Tens and Ones to Subtract Game Play Break the Hundreds to Subtract Game Play Break the Tens to Subtract Game Play Complete Related Facts of Addition and Subtraction Game Play Complete Subtraction Sentences by Regrouping Game Play Complete Subtraction using Pictures Game Play Complete the Fraction Subtraction Game Play Complete the Mixed Numbers Subtraction Game Play Complete the Related Subtraction Facts Game Play Complete the Subtraction between a Mixed Number and a Fraction Game Play More Games What is Subtraction in Math? Subtraction is one of the four basic arithmetic operations in mathematics. The other three being addition , multiplication , and division . We can observe the applications of subtraction in our day-to-day life in different situations. For example, if we have 3 candies and our friend asks us for 1 candy, how many candies are we left with? Simply, $3 − 1 = 2$ Let’s understand the concept with the help of the following example of apples. In the example above, if Harry has 6 apples and he gives 3 apples to Jim, How many apples are left with him? We can calculate this by subtracting 3 from 6: $6 − 3 = 3$ Harry is left with 3 apples. Recommended Worksheets More Worksheets Definition of Subtraction The operation or process of finding the difference between two numbers or quantities is known as subtraction. To subtract a number from another number is also referred to as ‘taking away one number from another’. Some instances where we use subtraction are while making payments, transferring money to our friends and many more. Symbol of Subtraction In mathematics, we have generally used different symbols for different operators. We have symbols like $+, −, /, *$ and many more. The subtraction symbol $“−”$ is one of the most important math symbols that we use. In the above section, we read about subtracting two numbers 6 and 3. If we observe this expression: $(6 − 3 = 3)$, the symbol $(−)$ between the two numbers is what denotes subtraction. This symbol is also known as the minus $(−)$ sign. Formula of Subtraction Operation When we subtract two numbers, we commonly use some terms that are used in a subtraction expression: Minuend : A minuend is the number from which the other number is subtracted. Subtrahend : A subtrahend is the number which is to be subtracted from the minuend. Difference : A difference is the final result after subtracting the subtrahend from the minuend. The subtraction formula is written as Minuend $−$ Subtrahend $=$ Difference For example, $7 − 3 = 4$ Here, $7 =$ Minuend $3 =$ Subtrahend $4 =$ Difference What Is Minus in Math? Minus is a sign or a symbol that is represented by a horizontal line . We use minus in mathematics for multiple representations. Uses of Minus Sign Subtraction Operation Minus represents the arithmetic operation of subtraction between two numbers. We use minus sign to denote subtract, decreased by, take away, etc. For example, Minus sign also means how much is one value more than the other value. For example, Darby has 8 gingerbread with her and Olive has 3 gingerbreads. Darby has more gingerbreads by $(8 − 3) = 5$ To Represent Negative Integers Integers are the numbers that are not in decimal or fractional form and include positive and negative numbers along with 0. We use the minus sign to represent the negative integers, i.e., the whole numbers which are less than zero (no fractions). For representing a negative integer, we add a negative or minus sign in front of a whole number. For example, negative integer 5 is represented as: $(− 5)$ Use in Measurement We also use the minus sign in measurement specially in temperature. For example, a temperature of $− 4^{\circ} \text{C}$ means 4 degrees below zero. Another example: The temperature is $5^{\circ} \text{C}$ and then drops $− 10^{\circ} \text{C}$. What is the temperature now? The temperature now $= 5 − 10 = − 5^{\circ} \text{C}$ To Represent Opposite Directions We also use the minus sign to represent a negative direction on a graph paper to show the coordinates. The graph also runs in the negative direction. In the first quadrant, the coordinates are of the form $(x,y)$. In the second quadrant, the coordinates are of the form $(−x,y)$. In the third quadrant, the coordinates are of the form $(−x,−y)$. In the fourth quadrant, the coordinates are of the form $(x,−y)$. Mathematical Operations on Integers Using “