ICE Task
Bodmas
B
Brackets
(9/3)+3x2-4of2=
O
Of
3+3x2-8=
D
Divide
3+3x2-8=
M
Multiply
3+6-8=
A
Add
9-8=
S
Subtract
9--8=1
The basics operations of numbers
Adding
Adding is when you add two or more numbers together.
Example:2+3=5
Subtraction
Subtraction is when you subtract numbers from each other and it could be positive or negative
Example:4-(-1)=5
Multiplying
Multiplying is the same as adding.Instead of adding 3 groups of 4 you can multiply 3 by 4 to get the same answer.
Example:5x3=15
3of4=12
(-+-=+) Example:-3x-4=12
-x+=-(Example:-3x4=-12
Dividing
Dividing is when you divide two or more numbers with each other.
Example:-20/5=-4
Number line
Subtopic
The numbers on the right hand sight is positive numbers and the numbers on the left hand sight is negative
Example:-3-3=0(means you have to move from -3 three places to the right hand sight
Types of numbers
Whole numbers
Numbers that we use to count are whole numbers
Example:1,2,3,4....
Intergers
The consist of all whole numbers, their negattive as well as zero
Example:-6,-5,-4,-3,-2,-1,0,1,2,3,5
Prime numbers
A prime number can only be divided by 1 and itself to give a whole number answer
Example:1,2,3,5,7...
Even numbers
Even numbers are multiplies by 2.All even numbers can therefore be divided by 2 to give a whole answer
Examples:2,4,6,8,10...
Odd numbers
Odd numbers are numbers that are not even
Examples:1,3,5,7,9...
Numbers that are squared
The squared of a number is the multiplied by itself and is represented by the symbol^2 written the number as in 4^2
Example:x^2=x^2 or 4^2=16
Square roots
The square root is the oppsite of the square and is the number which when mulitiplied by itself gives the final figure
Example:square root of 4=2
Commutative,Associative and Distributive laws
Commutative law:when you add and multiply two numbers.
Example:6+2=2+6
Associative law:when we add and multiply three numbers,it does not matter which 2 we add or multiply.
Example:(2+1)+3=2+(1+3)
Distributive law:when we multiply a number by the sum of two numbers,it is the same as multiplying first and adding the two products.
Example:2x(3+4)=2x3+2x4
Average
You need to add the numbers and devide the total amount by the number of items
Rules of inequalities
Rule 1 :the same amount on each side of inequality is still the same and true
Rule2:if you subtract the same amount from each inequality the answer is still the same snd true
Rule3:if we multiply both sides of an inequality by a positive number,the inequality does not change
Rule 4:if we multiply both sides of an inequality by n negative number the inequality sign must be reversed