Algebra

Collecting like terms

100

Simplify 2a + b + a

3a + b

200

Simplify 4d - 3g + 2d - g

6d - 4g

300

Simplify 4a² + a + 2a

4a² + 3a

400

Simplify x² + y + 3x² - 2y

4x² - y 

Substitution

100

If a = 50, what is the value of a + 8?

a = 58

200

If a = 9 & b =27 , what is the value of b/a?

b/a = 3

300

If a = 10 & b = -2, what is the value of 4a - b?

42

400

If a = -1 & b = -3, what is the value of 2a + b?

-5

Expanding

100

Expand 15(a+2)

15a + 30

200

Expand 23(b - 4)

23b - 92

300

Expand -20(c+7)

-20c - 140

400

Expand -25(d - 3) 

12 - 25d (or -25d + 12)

Factorising

100

Factorise 10a + 20

10(a + 2)

200

Factorise 16b - 2 

2 (8b - 1)

300

Factorise 14c - 49d

7 (2c - 7d)

400

Factorise 4e + 12e²

4e (1 +3e)