**Equal or Not Equal**

Starter

Start on the left, work your way across doing the calculations in your head, and write down the answer.

START ANSWER

85 >> ÷ 5 , + 3 , ÷ 4 , x 3 , x 3 , ÷ 5 , + 3 , ÷ 4 , + 6 ………….

24 >> ÷ 3 , - 6 , x 2 , x 9 , - 9 , x 2 , - 9 , ÷ 9 , x 6 ………….

17 >> x 2 , + 6 , ÷ 20 , x 6 , x 9 , + 10 , ÷ 2 , - 5 , + 13 ………….

56 >> ÷ 2 , + 14 , ÷ 7 , x 8 , ÷ 4 , x 6 , + 12 , ÷ 6 , x 25 ………….

41 >> - 9 , x 2 , x 3 , - 20 , ÷ 4 , x 3 , + 23 , ÷ 4 , x 3 ………….

Activity

Cut out and sort the cards into expressions, equations, inequalities and identities.

Equations, inequalities, and identities

What do each of these say?

3x + 6 = 5x + 2

3x + 6 > 5x + 2

3x + 6 = 3(x + 2)

Starter

Start on the left, work your way across doing the calculations in your head, and write down the answer.

START ANSWER

85 >> ÷ 5 , + 3 , ÷ 4 , x 3 , x 3 , ÷ 5 , + 3 , ÷ 4 , + 6 ………….

24 >> ÷ 3 , - 6 , x 2 , x 9 , - 9 , x 2 , - 9 , ÷ 9 , x 6 ………….

17 >> x 2 , + 6 , ÷ 20 , x 6 , x 9 , + 10 , ÷ 2 , - 5 , + 13 ………….

56 >> ÷ 2 , + 14 , ÷ 7 , x 8 , ÷ 4 , x 6 , + 12 , ÷ 6 , x 25 ………….

41 >> - 9 , x 2 , x 3 , - 20 , ÷ 4 , x 3 , + 23 , ÷ 4 , x 3 ………….

**L.O. - Understand the use of identity, equality and inequality notation, and the meanings when expressions are linked using these notations.**

Equations, inequalities, and identities

What do each of these say?

3x + 6 = 5x + 2

3x + 6 > 5x + 2

3x + 6 = 3(x + 2)

3x + 6 is possibly equal to 5x + 2 for some values of x. We can try and find those values of x. This is an

EQUATION

3x + 6 is possibly more than 5x + 2 for some values of x. We can try and find those values of x. This is an INEQUALITY

3x + 6 is identical to 3(x + 2) and so will be the same for any value of x that we choose.

Equalities, inequalities, and identities

5y - 10

5y - 10 = 2

5y - 10 = 4(y - 7)

f

(y) = 5y - 10

x = 5y - 10

Equality

Equation

Function

Formula

Inequality

5y - 10 > 7

5y - 10 < y - 3

Identity

Activity

Cut out and sort the cards into expressions, equations, inequalities and identities.

**Key**

Examples

Examples

Activity

On the whiteboard:

I will write down some algebra, you write down whether it is an Equation (Eq) Inequality (Iq), an Identity (Id) or None of these (N)

**Activity**

Answers

Answers

**Activities**

Worked

Example