Mr Brown's Y8 Math Quiz

Numbers

100

7−12

-5

200

−6+4×2

4×2=8  

−6+8=2

300

(−3+5)×(−4)

−3+5=2  

2×(−4)=−8

400

18÷(−3)+2×(−5)

18÷(−3)=−6  

2×(−5)=−10  

−6+(−10)=−16

500

−4+[6−(3−8)]×(−2)

Inside inner brackets: 3−8=−5

Middle bracket: 6−(−5)=11

Multiply: 11×(−2)=−22

Final: −4+(−22)=−26

FDP

100

Convert 3/4 to a decimal

0.75

200

Convert 0.125 to fraction (simplify) 

1/8

300

Show 62.5% as a simplified fraction and a decimal

5/8 and 0.625

400

A number is written as the decimal 0.048.

Write it as a percentage and as a fraction in simplest form.

• Percentage: 4.8%

• Fraction (simplest form): 6/125

500

A student claims that:

“7/20, 0.35, and 35% are all equivalent.”  Decide whether the student is correct. Show full working by converting all three into the same form.

• 7/20=0.35=35%

• Conclusion: The student is correct

Define and use in a sentence

100

BIDMAS

Brackets

Indices

Division

Multiplication

Addition

Subtraction

200

Inevitable

Certain to happen; unavoidable no matter what you do.

300

Resilient

Able to recover quickly from difficulties, challenges, or setbacks.

400

Ubiquitous

Appearing everywhere; extremely common or widespread.

500

Self-efficacy

An individual’s belief in their capacity to execute behaviours necessary to produce specific performance attainments.

Exponents

100

9²

81

200

Simplify: 4³×4⁷

4¹⁰

300

Simplify;

3⁶ / 3² x 3¹²

3¹⁶

400

Expand and solve;

(4²)²

Expand/ solve;

4 x 4 x 4 x 4

= 256

500

(2⁴ x (2^-3)²) / 2^-5

Step 1: Expand the power (2⁻³)²=2⁻⁶

Step 2: Multiply in numerator 2⁴×2⁻⁶=2⁻²

Step 3: Divide by 2⁻⁵: subtract powers

2^{−2−(−5)}=2³

2³ = 8

General Knowledge

100

What is the name of the wizarding school that Harry Potter attends?

Hogwarts

200

Which country has the largest population in the world?

China

300

If you mix red and light blue, what colour do you get?

Purple (specifically magenta in light)

400

Place the following events in chronological order (earliest → most recent):

• The fall of the Roman Empire

• The first commercial flight

• The invention of the printing press

• The start of World War I

• Fall of the Roman Empire (476 AD)

• Invention of the printing press (around 1440)

• First commercial flight (Jan 1914)

• Start of World War I (July 1914)

500

Which of the following languages has the most native speakers, and therefore is considered the largest first‑language population in the world?

• Spanish

• Mandarin Chinese

• Hindi

• English

Mandarin Chinese  (It has the largest number of native speakers globally.)