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All About Math Trivia Quiz

This quiz involves general math questions and some calculation is needed. Some questions are PEMDAS (BEMDAS & BOMDAS to other countries). Enjoy.

A multiple-choice quiz by rjtseelkadoom. Estimated time: 3 mins.

Author
rjtseelkadoom

Time
3 mins

Type
Multiple Choice

Quiz #
346,270

Updated
Jul 03 24

# Qns
10

Difficulty
Average

Avg Score
7 / 10

Plays
615

Question 1 of 10

1. PEMDAS (BEMDAS & BOMDAS to other countries): * means multiply and / means divide) : What is (2*90)+(3*20)-100/2? Hint

180

160

170

190

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Question 2 of 10

2. EXPONENT: ^ means exponent : What is 25^2-199-500?
Hint

-74

-84

-64

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Question 3 of 10

3. WHOLE NUMBERS: It is the least number that is divisible by numbers from 1-10. What is the number? Hint

2520

2550

5040

20160

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Question 4 of 10

4. PLACE VALUE: The number is 9 876 549. What is the ratio of place value between the bigger 9 (the first 9) and the smaller 9 (the last digit)? Hint

1 000 000

10 000

10 000 000

100 000

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Question 5 of 10

5. ALGEBRA: What is x in ((2*14+25-10-1)/2)^x=441 Hint

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Question 6 of 10

6. ALGEBRA: What is x if (x^3)-100 is equal to a number that is the median of numbers from 15520 to 15530. Hint

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Question 7 of 10

7. POLYNOMIAL: What is x and y in 7x-5y=100 and 2x+5y=80? Hint

x=20 and y=8

x=8, y=20

x=30, y=8

y=20, x=8

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Question 8 of 10

8. PEMDAS (BEMDAS & BOMDAS to other countries): What is (3*5)^2-100-99? Hint

126

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Question 9 of 10

9. PEMDAS: (BEMDAS & BOMDAS to other countries): What is ((2*5+1-9)^6)-100? Hint

-36

-26

-46

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Question 10 of 10

10. INTEGERS: What is (5^2-6)*11-99? Hint

120

130

110

100

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Quiz Answer Key and Fun Facts

1. PEMDAS (BEMDAS & BOMDAS to other countries): * means multiply and / means divide) : What is (2*90)+(3*20)-100/2?

Answer: 190

First you must multiply 2 by 90, and 3 by 20, then divide 100 by 2, then add the result then subtract it.

Q: 2*90+3*20-100/2
= 180+60-50
= 240-50
= 190

2. EXPONENT: ^ means exponent : What is 25^2-199-500?

Answer: -74

Multiply 25 by itself 2 times. Then subtract.

Q: 25^2-199-500
= 625-699
= -74

3. WHOLE NUMBERS: It is the least number that is divisible by numbers from 1-10. What is the number?

Answer: 2520

Let's start with 1*2*3*4*5*6*7*8*9*10 which is certainly divisible by all of them, but it's not the lowest number.

If the answer is divisible by 10 then it is divisible by 2 and 5.
If the answer it's divisible by 9 then it is divisible by 3.
If it's divisible by 8 then it is divisible by 2 and 4.
If it's divisible by 8 & 9 then it is divisible by 6.

Remove all the duplicates and the lowest number is:
9 x 8 x 7 x 5
= 2520

4. PLACE VALUE: The number is 9 876 549. What is the ratio of place value between the bigger 9 (the first 9) and the smaller 9 (the last digit)?

Answer: 1 000 000

You must get the value of bigger 9 and the smaller 9. Then divide the value of the bigger 9 to the smaller 9.

5. ALGEBRA: What is x in ((2*14+25-10-1)/2)^x=441

Answer: 2

Simplify the inside the parenthisis then reverse the equation.

Q:((2*14+25-10-1)/2)^x=441
= ((28+25-11)/2)^x=441
= ((42)/2)^x=441
= 21^x=441

x=2 (21 squared = 441)

6. ALGEBRA: What is x if (x^3)-100 is equal to a number that is the median of numbers from 15520 to 15530.

Answer: 25

First get the median of numbers from 15520 to 15530 and then add 100 and then get the cube root.

median=15525
+100=15625
25^3=15625

7. POLYNOMIAL: What is x and y in 7x-5y=100 and 2x+5y=80?

Answer: x=20 and y=8

Add the 2 equations then do the rules of algebra.

2x+5y=80
2x=80-5y
x=40-5/2y

7x-5y=100
7(40-5/2y)-5y=100
280-35/2y-5y=100
560-35y-10y=200
560-200=35y+10y
360=45y
8=y

x=40-5/2y
x=40-5/2*8
x=40-20
x=20

8. PEMDAS (BEMDAS & BOMDAS to other countries): What is (3*5)^2-100-99?

Answer: 26

First you must multiply 3 by 5, then multiply the result by itself 2 times, then subtract it in 100 and 99.
Q:(3*5)^2-100-99
= 15^2 -199
= 225-199
= 26

9. PEMDAS: (BEMDAS & BOMDAS to other countries): What is ((2*5+1-9)^6)-100?

Answer: -36

First you must do the inside of the parenthesis (aka inside the brackets) then subtract. Since the result is 64, change the equation into 64+(-100).
Q:((2*5+1-9)^6)-100
= ((10+1-9)^6)-100
= 2^6-100
= 64-100
= -36

10. INTEGERS: What is (5^2-6)*11-99?

Answer: 110

First you must do the inside the parenthesis (inside the brackets) and then multiply then subtract.
Q:(5^2-6)*11-99
= (25-6)*11-99
= 19*11-99
= 209 -99
= 110

Source: Author rjtseelkadoom

This quiz was reviewed by FunTrivia editor gtho4 before going online.
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