Table of Contents
Arithmetic and it’s Discovery
Arithmetic is a branch of mathematics that deals with the properties and operations of numbers. Arithmetic can be traced back to the ancient Babylonians, who were the first to develop a positional numeral system. This system allowed them to represent numbers using only symbols for 1, 10, and 100. From there, arithmetic progressed to include such concepts as addition, subtraction, multiplication, and division.
- Addition is the process of combining two or more numbers to get a total. The sum of two numbers is found by adding the numbers together. For example, the sum of 4 and 3 is 7.
- Subtraction is the process of finding the difference between two numbers. The difference of two numbers is found by subtracting the second number from the first number. For example, the difference of 4 and 3 is 1.
- Multiplication is the process of multiplying two numbers together to get a result. The product of two numbers is found by multiplying the numbers together. For example, the product of 4 and 3 is 12.
- Division is the process of dividing one number by another number to get a result. The quotient of two numbers is found by dividing the first number by the second number. For example, the quotient of 4 and 3 is 1.33.
Addition of two numbers
The sum of two numbers is the result of adding the numbers together.
Subtraction
To subtract, first line up the numbers so that the ones digits are directly across from each other. Then, subtract the numbers in the ones column. Finally, write the answer in the ones column of the answer row.
- 22 – 9
- 2 – 9 = -7
- 22 – 9 = 13
Multiplication
Multiplication is a mathematical operation that calculates the product of two numbers. The result is a new number that is the result of multiplying the two numbers together.
Division
- In mathematics, division is the process of dividing one number by another. The result of this process is a rational number. Division can also be thought of as the inverse of multiplication.
- To divide two numbers, divide the first number by the second number. This will give you a decimal number. To get a whole number, move the decimal point two places to the right.
- For example, to divide 4 by 2, divide 4 by 2 to get 2.0. To get a whole number, move the decimal point two places to the right to get 2.
