Algebra

Adding like terms

100

x + x + x

3x 

200

x + 2x + 3x 

6x

300

3a - a 

2a

400

12a + b + 3a + 5b

15a + 6b 

500

3ab + 2ab 

5ab

Substituting numbers in for letters

100

If x = 2 

What is x + 2? 

4

200

If x =5 

What is 6x 

30

300

If x = 2 and y = 3 

What is 2x + y? 

7

400

If a = 2 

What is 5a - 2a? 

6

500

If a = 6 and b = 2 

What is ab? 

12

Removing Brackets

100

4( x + 2 ) 

4x + 8

200

3(x + y) 

3x + 3y

300

6(2x - y) 

12x -6y

400

5(2x - 3) 

10x -15

500

7(x + y) +3(2x - 3y)

13x - 2y

Multiplication involving indices

100

a x a 

a²

200

2x(x) 

2x²

300

3y x 2y 

6y²

400

8b x 2b

16b²

500

2b² x 2b²

4b⁴

Multiplying two expressions

100

(x + 1)(x + 2) 

x² + 3x + 2 

200

(x + 3)(x + 4) 

x² + 7x + 12

300

(2x + 4) ( x + 3) 

2x² +10x + 12

400

(x + 4)(x + 4) 

x² + 8x +16

500

(x + 9)(x + 3) 

x² + 12x + 27