Learn the four basic operations of mathematics

                        Four basic operations of  Mathematics


  • Addition
  • Subtraction
  • Multiplication
  • Division
  • Addition is a mathematical operation that explains the total amount of objects when they are put together in a collection.
  • Subtraction is the arithmetic operation that is the opposite of addition. Subtraction is used when you want to know how many objects are left in the group after you take away a certain amount of objects from that group.
  • Multiplication: 
 Let’s say we want to add a particular number, such as six, to itself many times. For instance, a worker at a factory may wish to count the number of parts delivered in several boxes. Each box contains six parts, and there are a total of five boxes. To find out how many parts he has, the worker must add the number six to itself five times.
6 + 6 + 6 + 6 + 6
We can find the sum simply by performing the addition several times over. A shortcut, however, is multiplication. Imagine the parts in each of the five boxes laid out in rows, as shown below (we use a square to represent a part).
  • Division is the fourth basic math operation. Basically, you can say that dividing means splitting objects into equal parts or groups. For example, you have 12 apples that need to be shared equally between 4 people. So, how many apples will each person get? Each person will get 3 apples (12 apples / 4 people = 3 apples per person). The division is the opposite of multiplication: 3 * 4 = 12 and 4 * 3 = 12

       12/4 = 3 and 12/3 = 4 
"Mathematics is not about numbers,equations,computations and algorithims.It is about understanding."

For better understanding,
visit :
  1.  https://www.mathsteacher.com.au/year8/ch01_arithmetic/01_basic/oper.htm
  2. https://www.youtube.com/watch?v=EfaZGWLtmvg

Comments

Post a Comment

Popular posts from this blog

Addition is fun!

Image
Addition is ... ... bringing two or more numbers (or things) together to make a new total. Here 1 ball is added to 1 ball to make 2 balls:   Using Numerals it is:      1 + 1 = 2       And in words it is:   "One plus one equals two" Example: When we add  2  and  3  we get  5 . We can write it like this: 2 + 3 = 5 Swapping the position of the numbers we are adding still gets the same result! 3 + 2 = 5 ... also ...   2 + 3 = 5 More Examples: 5 + 1 =  1 + 5  = 6 7 + 11 =  11 + 7  = 18 4 + 100 =  100 + 4  = 104 Larger Numbers: Use Addition in Columns To add larger numbers use  Column Addition  :   Names Other names for Addition are  Sum, Plus, Increase, Total And the numbers to be added together are called the " Addends ": For better understanding: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-sub-intro/v/addition-introduction https://www.khanacademy.org/math/arithm
Read more

Introduction to area

Image
Area               In maths, geometry is the science of finding the measurements of shapes. There are several different measurements that can be calculated depending on the type of shape. These measurements are called dimensions. Width, depth, or height are examples of dimensions. Shapes can be broken into planes, geometric figures, or even just a point. Planes only have two dimensions such as length and width. Three-dimensional shapes have length, width and height. A point would only have one dimension. While a point doesn’t take up enough space to calculate for, planes and geometric figures do. This means planes and geometric figures have an area that can be calculated.                   For each shape, there is a different formula to find its area. Three-dimensional shapes have surface area since space inside them will need to be calculated differently. The area inside a three-dimensional shape is called volume. Since calculating three dimensions is much more complex, i
Read more