Year 10- Algebra

Simplify and Substitute

100

simplify x + 2x = 

3x

200

Simplify 5x + 2y + 2x + 2y

7x + 4y

300

if a = 2

Evaluate 2a + 9 = 

13

400

Simplify: 4x - 2y + y - 8x - 7y = 

-4x - 8y

500

if a = 7 and b = -4, Solve

4ab - b² =

-96

Negative Numbers

100

12 - 20=

-8

200

7 + (-12)=

-5

300

-3 x 2 x -4=

24

400

[-2 - (- 10)] ÷ -4=

-2

500

-2² + (9 - 5) x -6=

-28

Solve

100

x + 3 = 10

x = 7

200

Solve for x:

4x = 16

x = 4

300

Solve for x:

6x + 5 = 35

x = 5

400

x + 5 = 2x + 7

x = -2

500

4x + 3 = 9x - 7

x = 1/2

Simple Interest

100

What does P stand for?

Principal

200

Calculate the SI if:

P = 200, r = 0.1 and t = 5

$100

300

Calculate the simple interest earned if I invest $2000 for 10 years at a rate of 5%

$1000

400

Calculate the total amount I have to pay if I take out a loan of $50,000 for 30 months at a rate of 12%

65,000

500

Calculate the rate (as a percentage) of an investment if I earn 200 after 6 years, with an initial principal of $1200

2.7%

Random

100

How many primary colours are there?

3

200

What can run but not walk?

A river

300

How many states and territories are in Australia?

8

400

What has a ring but no finger?

A phone

500

How many bones are in the human body?

206