Happy Friday

Maths 1

100

Calculate 2 - 6 x 4 + 22

0

200

Calculate 6 - 4 + 6 /2 + 3 x 0

5

300

Calculate [ (-2 + 5) x 3 + 3 ] / 4 

3

400

Simplify 

6a x 2bc x 3d

36abcd

500

Simplify

3x²y * 2x / xy

6x²

Maths 2

100

Round 123.456 to 2 decimal places

123.46

200

Round 5.678 to 2 significant figures

5.7

300

10ab/15ac

2b/3c

400

18x²y / 8xz

9xy / 4z

500

Simplify 

-2xy * 5zy * 3y

-30xy³z

random stuff

100

How many bones does a shark have

0

200

what is the tallest grass species called

bamboo

300

A power station emits 5000 tonnes of CO2 per day.

After a carbon capture and storage system is installed there is a 75% reduction in CO2 emissions.

How much CO2 is emitted per day after installation of the system?

1250 tonnes

400

Carbon, Capture and Storage (CCS) technology has been installed at a power station, resulting in a 10% overall increase in the cost of electricity.

Prior to installation of the CCS technology the electricity cost was $70 per MWh. How much is the cost of electricity after installation?  

$77

500

A quantity of concrete has to be mixed using a ratio of 2:3:6 cement:sand:gravel.

What quantity of cement will be needed (in m³) if the total amount of concrete required is 22m³?

4m³

Wot ever

100

what is the rearest blood type

ab negative

200

How many hearts does a worm have?

5

300

What is Newtons Third law

for every action there is an equal and opposite reaction.

400

What is Mr T's favourite sport?

surfing

500

How much weight can an ant lift?

50 times its own body weight

Maths 5

100

Simplify the following:

2x (3y + 1)

6xy +2x

200

Simplify the following:

-3x (-2y +8)

6xy -24x

300

Express x as the subject:

3x - 6 = 3

x = 3

400

What is the value of x⁰ + y⁰ + 1?

a. 1

b. 2

c. 3

c. 3

500

Multiply out the following:

-5z (4 + 6z) + 5z (4-6z)

-30z²