Basic Mathematics Full Notes For Ordinary Level Form 1 – 4

Mathematics is one of the most important subjects. Mathematics is a subject of numbers, shapes, data, measurements and also logical activities. It has a huge scope in every field of our life, such as medicine, engineering, finance, natural science, economics, etc. We are all surrounded by a mathematical world.

Mathematics Arithmetic Operations

The basic mathematics begin with arithmetic operations such as addition, subtraction, multiplication and division. These are the basics that every student learns in their elementary school. Here is a brief of these operations.

Addition: Sum of numbers (Eg. 1 + 2 = 3)
Subtraction: Difference between two or more numbers (Eg. 5- 4 = 1)
Multiplication: Product of two or more numbers (Eg. 3 x 9 = 27)
Division: Dividing a number into equal parts (Eg. 10 + 2 = 5, 10 is divided in 2 equal parts)

The concepts, theories and formulas that we learn in Mathematics books have huge applications in real-life. To find the solutions for various problems we need
to learn the formulas and concepts. Therefore, it is important to learn this subject to understand its various applications and significance.

What is numbers?

Numbers are symbols or words which represent quantity of something for example in form 1B there are forty four students. i.e. 44 students

The numbers are represented by symbols called numerals. Each symbol in a numeral is called a digit. E.g. In 256 there are three digits 2, 5, and 6. There are ten digits which are 0, 1, 2, 3, 5, 6, 7, 8, and 9

Each digit in a numeral has a value called place value. Example in 316, 6 is called ones and can be written as 6 x 1, 1 is called tens and is written as 1 x 10 and 3 is called hundreds written as 3 x 100. Therefore 316 can be written as 3 x 100 +1 x 10 + 6 x1 this form is called expanded form.

The system where numbers are in groups of ten is called base ten numerations or decimal system numeration. The place value of every digit in decimal system numeration is ten times the place value of the next to the right.