Greater Than > Less Than < Equal To = And Solving Inequalities by Simrut Sangha

More Than Sign

s_sangha15 — 2017-11-16 19:02:47 UTC

The sign for more than is: >
So 9>2 is a true statement

Less Than Sign

s_sangha15 — 2017-11-16 19:02:48 UTC

The sign for less than is: <So 6<10 is a true statement

Less Than or Equal To Sign

s_sangha15 — 2017-11-16 19:09:54 UTC

The sign for less than or equal to is:

More Than or Equal To Sign

s_sangha15 — 2017-11-16 19:13:46 UTC

The sign for more than or equal to is:

People say that the crocodile eats the bigger number. In every single example you find, you will see that the wider side of the sign, is the side that always faces the bigger number.

s_sangha15 — 2017-11-16 19:16:18 UTC

Here are a couple of examples for you to try:

s_sangha15 — 2017-11-16 19:20:30 UTC

Solving an inequality is like solving an equation but instead of finding the exact answer, you are getting more of an estimate.

s_sangha15 — 2017-11-16 19:39:51 UTC

8x-12

s_sangha15 — 2017-11-16 19:41:24 UTC

A number multiplied by 8 take away 12 should give an answer of less than 16, which makes our answer not a number, but a range

Inequalities are solved like simple equations

s_sangha15 — 2017-11-16 19:45:22 UTC

What you do to one side, you do to the other.

Solve this inequality(solved on slide below):

s_sangha15 — 2017-11-16 19:47:11 UTC

5x-3<7

5x-3

s_sangha15 — 2017-11-16 20:14:28 UTC

Add 3 to both sides to cancel out the -3
Now we have
5x<10
You then simplify the inequality by dividing the number in front of x which in this example is 5
x<2
So the inequality 5x-3<7 is valid when x is less than 2 (This does not include 2 itself)

Inequalities can also be shown on a number line.

s_sangha15 — 2017-11-16 20:21:42 UTC

You use an open circle for < and >

s_sangha15 — 2017-11-16 20:22:20 UTC

You use a solid circle for =

s_sangha15 — 2017-11-16 20:23:32 UTC

Now Try A Quiz

s_sangha15 — 2017-11-16 20:25:16 UTC

http://www.bbc.co.uk/bitesize/quiz/q79926064