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I've been having problems with my HTML code Plz help

In My code at the last i press the button at the last and enter the ans too but it dosent work plz help <! DOCTYPE HTML> <html> <head> <title> Mathematics </title> </head> <body left margin="20px"> <H2 id="head1">Maths</H2> <a name="TOP" id="plz"></a> <font face="georgia" color="midnightblue"> Maths has 4 basic arithemetic operators <br> They are: <br> <a HREF="#adds" id="add">Addition</a> <a HREF="#subs">Minus</a> <a HREF="#mul">Multiplication</a> <a HREF="#divi">Division</a> <BR> <BR> <p id="mulv">Arithmetic or arithmetics is the oldest and most elementary branch of mathematics. It consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory</p> <br> <br> <br> <br> <a name="adds" id="adda">Addition</a> <br> <br> <p id="addv">Addition (often signified by the plus symbol "+") is one of the four basic operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined. For example, in the picture on the right, there is a combination of three apples and two apples together, making a total of five apples. This observation is equivalent to the mathematical expression "3 + 2 = 5" i.e., "3 add 2 is equal to 5". </p> <br> <p id="addv">Besides counting fruits, addition can also represent combining other physical objects. Using systematic generalizations, addition can also be defined on more abstract quantities, such as integers, rational numbers, real numbers and complex numbers and other abstract objects such as vectors and

30th Sep 2016, 10:58 AM
faisalbeast
3 odpowiedzi
+ 1
where's the button ?
30th Sep 2016, 12:26 PM
Shreyas Chavan
Shreyas Chavan - avatar
0
sorry this the new error <! DOCTYPE HTML> <html> <head> <title> Mathematics </title> </head> <body left margin="20px"> <H2 id="head1">Maths</H2> <a name="TOP" id="plz"></a> <font face="georgia" color="midnightblue"> Maths has 4 basic arithemetic operators <br> They are: <br> <a HREF="#adds" id="add">Addition</a> <a HREF="#subs">Minus</a> <a HREF="#mul">Multiplication</a> <a HREF="#divi">Division</a> <BR> <BR> <p id="mulv">Arithmetic or arithmetics is the oldest and most elementary branch of mathematics. It consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory</p> <br> <br> <br> <br> <a name="adds" id="adda">Addition</a> <br> <br> <p id="addv">Addition (often signified by the plus symbol "+") is one of the four basic operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined. For example, in the picture on the right, there is a combination of three apples and two apples together, making a total of five apples. This observation is equivalent to the mathematical expression "3 + 2 = 5" i.e., "3 add 2 is equal to 5". </p> <br> <p id="addv">Besides counting fruits, addition can also represent combining other physical objects. Using systematic generalizations, addition can also be defined on more abstract quantities, such as integers, rational numbers, real numbers and complex numbers and other abstract objects such as vectors and matrices. </p> <BR> <BR> <BR> <BR> <a name="subs" id="suba">Minus</a> <BR>
2nd Oct 2016, 4:49 PM
faisalbeast
0
<a name="subs" id="suba">Minus</a> <BR> <BR> <p id="subv">Subtraction is a mathematical operation that represents the operation of removing objects from a collection. It is signified by the minus sign (−). For example, in the picture on the right, there are 5-2 apples—meaning 5 apples with 2 taken away, which is a total of 3 apples. Therefore, 5 - 2 = 3. Besides counting fruits, subtraction can also represent combining other physical and abstract quantities using different kinds of objects including negative numbers, fractions, irrational numbers, vectors, decimals, functions, and matrices. <BR> Subtraction follows several important patterns. It is anticommutative, meaning that changing the order changes the sign of the answer. It is not associative, meaning that when one subtracts more than two numbers, the order in which subtraction is performed matters. Subtraction of 0 does not change a number </p> <BR> <BR> <BR> <BR> <a name="mul" id="mula">Multiplication</a> <BR> <BR> <p id="mulv">The multiplication of whole numbers may be thought as a repeated addition; that is, the multiplication of two numbers is equivalent to adding as many copies of one of them, the multiplicand, as the value of the other one, the multiplier. Normally, the multiplier is written first and multiplicand second,</p> <BR> <BR> <BR> <BR> <a name="divi" id="divia">Division</a> <p id="diviv">Division is one of the four basic operations of arithmetic, the others being addition, subtraction, and multiplication. The division of two natural numbers is the process of calculating the number of times one number is contained within one another.[1]:7 For example, in the picture on the right, the 20 apples are divided into groups of five apples, and there exist four groups, meaning that five can be contained within 20 four times, or 20 ÷ 5 = 4. Division can also be thought of as the process of evaluating a fraction, and fractional notation</p> </font> <H2 id="head1">Advanced Operations</H2> <p><font color="Darkblue" size="4"><b>There is
2nd Oct 2016, 4:50 PM
faisalbeast