10 Tricky Math Questions

1. If 1=3

2=3

3=5

4=4

5=4

Then, 6=?

• 5
• 8
• 7
• 3

Answer explanation

The answer is 3 because six has 3 letters.

Tags

CCSS.4.OA.C.5

2. What is the number of parking space covered by the car?

• 17

• 87

• 60

• 90

Answer explanation

The answer is 87 because if you read the image upside-down, you will see 86, 88, 89 ,90, and 91. The car hides the number 87.

Tags

CCSS.2.NBT.A.3

7. I am an odd number. Take away one letter and I become even. What number am I?

• 9

• 4

• 7

• 3

Answer explanation

Seven (take away the ‘s’ and it becomes ‘even’).

Tags

CCSS.2.OA.C.3

Using only an addition, how do you add eight 8’s and get the number 1000? (use a paper or a calculator)

• 1000
• (8*8*8)+8
• (8+8+8)^2
• 888+88+8+8+8

9. Sally is 54 years old and her mother is 80, how many years ago was Sally’s mother times her age?

• 32
• 38

• 41

• 27

Answer explanation

41 years ago, when Sally was 13 and her mother was 39.

11. There is a basket containing 5 apples, how do you divide the apples among 5 children so that each child has 1 apple while 1 apple remains in the basket?

• Give each child 2 apples and leave 1 apple in the basket.
• Give each child 3 apples and leave 2 apples in the basket.
• Give each child 4 apples and leave 1 apple in the basket.
• Give each 4 children an apple and the fifth gets the last apple in the basket.

Tags

CCSS.3.OA.A.2

14. Two girls were born to the same mother, at the same time, on the same day, in the same month and the same year and yet somehow they’re not twins. Why not?

16. The day before yesterday I was 25. The next year I will be 28. This is true only one day in a year. What day is my Birthday?

• April 1st
• December 31st
• February 29th
• January 1st

Answer explanation

So, the day before yesterday is 30th December. You're 25 on 30th December and you are 26 on 31st December. Since, today is 1st January, you will be 27 by this year 31st December and in the next year you will turn 28. So, you'll be 28 by next year if your birthday is on 31st December

Tags

CCSS.8.EE.C.7B

19. How to get a number 100 by using four sevens (7’s) and a one (1)?

• 777 - (7/7) + 1
• 777 + (7/7) + 1
• 777 - (7*7) + 1
• 177-77

Tags

CCSS.7.NS.A.3

12. There is a three-digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number?

• 369
• 147
• 141

• 582

Answer explanation

1. The second digit is four times the third digit.

2. The first digit is three less than the second digit.

For the first condition, if we let the third digit be 1, then the second digit is 4, and the first digit is 1 less than the second digit, which gives us 1.

Therefore, the number is 141.

Tags

CCSS.7.EE.B.3