30 Second Hard Maths Questions!

Answer in decimal form, if more than 4 decimal places, round to the nearest thousandth. DO NOT USE COMMAS IN NUMBERS.
When you need to put measurements, do NOT abbreviate them, for example, cm should be centimetres
Quiz by
bobloxian
Rate:
Last updated: March 18, 2025
You have not attempted this quiz yet.
First submittedMarch 18, 2025
Times taken23
Average score10.0%
Report this quizReport
0:30
Good luck!
0
 / 10 guessed
The quiz is paused. You have remaining.
Scoring
You scored / = %
This beats or equals % of test takers also scored 100%
The average score is
Your high score is
Your fastest time is
Keep scrolling down for answers and more stats ...
Question
Answer
Q1: 2*3^5-39
447
Q2a: n=4. If 23n = 4.2y, what is y?
38.64
Q2b: 0.5y = x, what is x?
19.32
Q2c: Solve: (x-17.32)²ⁿ
256
Q3a: 3519*2
7038
Q3b: 3519*0.5
1759.5
Q4: What is 5,810 in the Standard form? (Express in words.)
5.81 multiplied by 10 to the power of 4.
Q5: What is 13/18 in decimal form?
0.722
Q6: What is 392.8 quintillion in numerals?
392800000000000000000
Q7: John is 15% taller than Barak, he is 193.1 centimetres tall, how tall is Barak?
222.065 centimetres
Save Your Stats
Your Next Quiz
Name all 50 states in the USA. Easy, right?
How many of the world's 50 most populous urban areas can you name?
20 random countries have been removed from the map of the world! Can you identify them in 3 minutes?
Drag the pin onto the correct country. Careful, though! Three wrong moves and the game ends.
Comments
No comments yet