150+ Best Quiz Questions for Kids with Answers - Fun Trivia - Free Printable
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Step-by-step solution for: 150+ Best Quiz Questions for Kids with Answers - Fun Trivia
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Show Answer Key & Explanations
Step-by-step solution for: 150+ Best Quiz Questions for Kids with Answers - Fun Trivia
Let's go through each of the Math Trivia questions and their answers, explaining the reasoning behind each one. This will help clarify the concepts and solutions.
---
Answer: Brackets, Orders, Division, Multiplication, Addition, Subtraction.
Explanation:
BODMAS is an acronym used to remember the order of operations in mathematics:
- B – Brackets (solve expressions inside brackets first)
- O – Orders (powers and roots, like exponents)
- D – Division
- M – Multiplication
- A – Addition
- S – Subtraction
This order ensures that mathematical expressions are evaluated consistently.
Example:
Evaluate $ 2 + 3 \times 4 $
Using BODMAS: multiplication before addition → $ 3 \times 4 = 12 $, then $ 2 + 12 = 14 $
---
Answer: Forty
Explanation:
Let’s look at how "forty" is spelled: F, O, R, T, Y
These letters are in alphabetical order:
F < O < R < T < Y ✔
No other common number name has its letters in alphabetical order.
---
Answer: Odd numbers
Explanation:
All odd numbers (like one, three, five, seven, nine, eleven, etc.) contain the letter 'e' when spelled out in English.
Even numbers: two, four, six, eight, ten — none of these have an 'e' in their spelling.
So, only odd numbers have the letter 'e' in their names.
---
Answer: Zero
Explanation:
Roman numerals use symbols like I, V, X, L, C, D, M to represent numbers.
There is no symbol for zero in the traditional Roman numeral system.
The concept of zero as a number was developed later and wasn't part of ancient Roman mathematics.
---
Answer: Yusheng Du in 3.47 seconds
Explanation:
As of the time this trivia was created (likely around 2018–2020), Yusheng Du from China held the world record for the fastest solve of a standard 3×3×3 Rubik’s Cube with a time of 3.47 seconds at the 2018 Wuhu Open.
Note: Records may change over time, but this is a well-known historical record.
---
Answer: 2 and 5
Explanation:
- A prime number is divisible only by 1 and itself.
- Numbers ending in 2 or 5 are usually divisible by 2 or 5.
- But 2 is prime because it's only divisible by 1 and 2.
- 5 is also prime because only 1 and 5 divide it.
- All other numbers ending in 2 or 5 are even or divisible by 5, so they’re not prime.
Thus, the only primes ending in 2 or 5 are 2 and 5.
---
Answer: 0.999999...
Explanation:
The repeating decimal 0.999... (infinite 9s) is mathematically equal to 1.
Proof:
Let $ x = 0.999... $
Then $ 10x = 9.999... $
Subtract:
$ 10x - x = 9.999... - 0.999... $
$ 9x = 9 $ → $ x = 1 $
So, $ 0.\overline{9} = 1 $
---
Answer: Quadrillion
Explanation:
In the short scale (used in the US and most English-speaking countries):
- Million → Billion → Trillion → Quadrillion → Quintillion → ...
Each step is multiplied by 1,000.
So, after trillion (10¹²) comes quadrillion (10¹⁵).
---
Answer: Choose a number. Add it to next higher num. Add 9, divide by 2, and then deduct the initial value.
Explanation:
Let’s test this trick with a variable:
Let the number be $ x $.
Next higher number: $ x + 1 $
Step-by-step:
1. $ x + (x + 1) = 2x + 1 $
2. Add 9: $ 2x + 1 + 9 = 2x + 10 $
3. Divide by 2: $ \frac{2x + 10}{2} = x + 5 $
4. Subtract initial value $ x $: $ x + 5 - x = 5 $
✔ Always gives 5, regardless of the starting number!
---
Answer: The solution involves going outside the box.
Explanation:
This is a classic lateral thinking puzzle.
You have a 3×3 grid of dots:
```
• • •
• • •
• • •
```
The trick is to draw four straight lines that connect all nine dots without lifting the pen, and going outside the boundaries of the square.
Solution Steps:
1. Start from the top-left dot.
2. Draw a line diagonally down to the bottom-right dot, extending beyond.
3. Then swing up to the top-right dot.
4. Continue to the middle-right, then to the bottom-middle, then to the top-middle, then to the bottom-left.
5. Final line connects back through the remaining dots.
But here's the key: you must extend the lines beyond the dots to make it work.
👉 The correct path is shown in the image (on the right side). It uses four continuous lines that go outside the box, connecting all dots.
This puzzle teaches thinking outside the box — literally!
---
| Question | Answer |
|--------|--------|
| 1 | Brackets, Orders, Division, Multiplication, Addition, Subtraction |
| 2 | Forty |
| 3 | Odd numbers |
| 4 | Zero |
| 5 | Yusheng Du in 3.47 seconds |
| 6 | 2 and 5 |
| 7 | 0.999999... |
| 8 | Quadrillion |
| 9 | Yes: Use the formula provided |
| 10 | Connect all 9 dots with 4 lines by going outside the square |
---
Let me know if you'd like a printable version or visual explanation of the 9-dot puzzle!
---
1. What is BODMAS?
Answer: Brackets, Orders, Division, Multiplication, Addition, Subtraction.
Explanation:
BODMAS is an acronym used to remember the order of operations in mathematics:
- B – Brackets (solve expressions inside brackets first)
- O – Orders (powers and roots, like exponents)
- D – Division
- M – Multiplication
- A – Addition
- S – Subtraction
This order ensures that mathematical expressions are evaluated consistently.
Example:
Evaluate $ 2 + 3 \times 4 $
Using BODMAS: multiplication before addition → $ 3 \times 4 = 12 $, then $ 2 + 12 = 14 $
---
2. Which number has letters placed in alphabetic order?
Answer: Forty
Explanation:
Let’s look at how "forty" is spelled: F, O, R, T, Y
These letters are in alphabetical order:
F < O < R < T < Y ✔
No other common number name has its letters in alphabetical order.
---
3. Which numbers always have 'e' spelled in them?
Answer: Odd numbers
Explanation:
All odd numbers (like one, three, five, seven, nine, eleven, etc.) contain the letter 'e' when spelled out in English.
Even numbers: two, four, six, eight, ten — none of these have an 'e' in their spelling.
So, only odd numbers have the letter 'e' in their names.
---
4. Which number is not present in Roman numerals?
Answer: Zero
Explanation:
Roman numerals use symbols like I, V, X, L, C, D, M to represent numbers.
There is no symbol for zero in the traditional Roman numeral system.
The concept of zero as a number was developed later and wasn't part of ancient Roman mathematics.
---
5. What's the highest record of quickly solving a Rubik’s cube?
Answer: Yusheng Du in 3.47 seconds
Explanation:
As of the time this trivia was created (likely around 2018–2020), Yusheng Du from China held the world record for the fastest solve of a standard 3×3×3 Rubik’s Cube with a time of 3.47 seconds at the 2018 Wuhu Open.
Note: Records may change over time, but this is a well-known historical record.
---
6. What prime numbers end in 2 or 5?
Answer: 2 and 5
Explanation:
- A prime number is divisible only by 1 and itself.
- Numbers ending in 2 or 5 are usually divisible by 2 or 5.
- But 2 is prime because it's only divisible by 1 and 2.
- 5 is also prime because only 1 and 5 divide it.
- All other numbers ending in 2 or 5 are even or divisible by 5, so they’re not prime.
Thus, the only primes ending in 2 or 5 are 2 and 5.
---
7. Which other number is equal to 1?
Answer: 0.999999...
Explanation:
The repeating decimal 0.999... (infinite 9s) is mathematically equal to 1.
Proof:
Let $ x = 0.999... $
Then $ 10x = 9.999... $
Subtract:
$ 10x - x = 9.999... - 0.999... $
$ 9x = 9 $ → $ x = 1 $
So, $ 0.\overline{9} = 1 $
---
8. What follows trillion?
Answer: Quadrillion
Explanation:
In the short scale (used in the US and most English-speaking countries):
- Million → Billion → Trillion → Quadrillion → Quintillion → ...
Each step is multiplied by 1,000.
So, after trillion (10¹²) comes quadrillion (10¹⁵).
---
9. If you perform a computation with any number, is there a way to always obtain 5?
Answer: Choose a number. Add it to next higher num. Add 9, divide by 2, and then deduct the initial value.
Explanation:
Let’s test this trick with a variable:
Let the number be $ x $.
Next higher number: $ x + 1 $
Step-by-step:
1. $ x + (x + 1) = 2x + 1 $
2. Add 9: $ 2x + 1 + 9 = 2x + 10 $
3. Divide by 2: $ \frac{2x + 10}{2} = x + 5 $
4. Subtract initial value $ x $: $ x + 5 - x = 5 $
✔ Always gives 5, regardless of the starting number!
---
10. Ask your youngster to join these 9 dots using only 4 lines and without taking their pen off the page.
Answer: The solution involves going outside the box.
Explanation:
This is a classic lateral thinking puzzle.
You have a 3×3 grid of dots:
```
• • •
• • •
• • •
```
The trick is to draw four straight lines that connect all nine dots without lifting the pen, and going outside the boundaries of the square.
Solution Steps:
1. Start from the top-left dot.
2. Draw a line diagonally down to the bottom-right dot, extending beyond.
3. Then swing up to the top-right dot.
4. Continue to the middle-right, then to the bottom-middle, then to the top-middle, then to the bottom-left.
5. Final line connects back through the remaining dots.
But here's the key: you must extend the lines beyond the dots to make it work.
👉 The correct path is shown in the image (on the right side). It uses four continuous lines that go outside the box, connecting all dots.
This puzzle teaches thinking outside the box — literally!
---
✔ Summary of Answers:
| Question | Answer |
|--------|--------|
| 1 | Brackets, Orders, Division, Multiplication, Addition, Subtraction |
| 2 | Forty |
| 3 | Odd numbers |
| 4 | Zero |
| 5 | Yusheng Du in 3.47 seconds |
| 6 | 2 and 5 |
| 7 | 0.999999... |
| 8 | Quadrillion |
| 9 | Yes: Use the formula provided |
| 10 | Connect all 9 dots with 4 lines by going outside the square |
---
Let me know if you'd like a printable version or visual explanation of the 9-dot puzzle!
Parent Tip: Review the logic above to help your child master the concept of quiz questions year 5.
