5th Grade Math Trivia Questions

1. Within the same day, how much time will pass between 2:15 PM and 5:15 PM?

2 Hours 45 Minutes

3 Hours

2 Hours 15 Minutes

3 Hours 15 Minutes

Between 2:15 PM and 5:15 PM, a total of 3 hours will pass. This is because the time difference between the two given times is exactly 3 hours.

Explanation

Between 2:15 PM and 5:15 PM, a total of 3 hours will pass. This is because the time difference between the two given times is exactly 3 hours.

2. Which point will satisfy the equation: x + y = 5?

(1, 4)

(4, 2)

(6, 1)

(2, 4)

The point (1, 4) satisfies the equation x + y = 5 because when we substitute x = 1 and y = 4 into the equation, we get 1 + 4 = 5, which is true.

Explanation

The point (1, 4) satisfies the equation x + y = 5 because when we substitute x = 1 and y = 4 into the equation, we get 1 + 4 = 5, which is true.

3. Which amount is largest?

1 Decigram

1 Gram

1 Milligram

1 Centigram

The gram is the largest unit of measurement among the options given. A decigram is one-tenth of a gram, a milligram is one-thousandth of a gram, and a centigram is one-hundredth of a gram. Therefore, 1 gram is the largest amount.

Explanation

The gram is the largest unit of measurement among the options given. A decigram is one-tenth of a gram, a milligram is one-thousandth of a gram, and a centigram is one-hundredth of a gram. Therefore, 1 gram is the largest amount.

4. How to write 72 inches in feet?

6 Feet

7 Feet

10 Feet

8 Feet

There are 12 inches in 1 foot.

To convert 72 inches to feet:

72 ÷ 12 = 6 feet

So, 72 inches = 6 feet.

Explanation

There are 12 inches in 1 foot.

To convert 72 inches to feet:

72 ÷ 12 = 6 feet

So, 72 inches = 6 feet.

5. How many gallons are in 20 quarts?

10

5

2.5

4

There are 4 quarts in a gallon, so to find the number of gallons in 20 quarts, we divide 20 by 4. The result is 5, meaning that there are 5 gallons in 20 quarts.

Explanation

There are 4 quarts in a gallon, so to find the number of gallons in 20 quarts, we divide 20 by 4. The result is 5, meaning that there are 5 gallons in 20 quarts.

6. What is 1/2 times 1/3 in lowest terms?

1/5

1/12

1/6

1/5

To find the product of two fractions, you multiply their numerators and denominators. In this case, multiplying 1/2 and 1/3 gives (1*1)/(2*3) = 1/6. This fraction cannot be simplified further, so it is already in its lowest terms. Therefore, the correct answer is 1/6.

Explanation

To find the product of two fractions, you multiply their numerators and denominators. In this case, multiplying 1/2 and 1/3 gives (1*1)/(2*3) = 1/6. This fraction cannot be simplified further, so it is already in its lowest terms. Therefore, the correct answer is 1/6.

7. What is 7 x 3/5?

21/35

35/3

21/5

21/25

To find the product of 7 and 3/5, we multiply the whole number by the numerator and divide the result by the denominator. So, 7 multiplied by 3 is 21. Dividing 21 by 5 gives us 4 with a remainder of 1. Therefore, the answer is 21/5.

Explanation

To find the product of 7 and 3/5, we multiply the whole number by the numerator and divide the result by the denominator. So, 7 multiplied by 3 is 21. Dividing 21 by 5 gives us 4 with a remainder of 1. Therefore, the answer is 21/5.

8. What is 1/5 times 7/9 in lowest terms?

7/14

7/45

14/90

45/7

To find the product of two fractions, we multiply the numerators together and the denominators together. In this case, we multiply 1/5 by 7/9. The numerator becomes 1 * 7 = 7, and the denominator becomes 5 * 9 = 45. Therefore, 1/5 times 7/9 is equal to 7/45.

Explanation

To find the product of two fractions, we multiply the numerators together and the denominators together. In this case, we multiply 1/5 by 7/9. The numerator becomes 1 * 7 = 7, and the denominator becomes 5 * 9 = 45. Therefore, 1/5 times 7/9 is equal to 7/45.

9. What is 1/4 + 1/3 in lowest terms?

2/3

12/7

7/12

4/3

To add fractions, we need a common denominator. The common denominator for 1/4 and 1/3 is 12. So, we convert 1/4 to 3/12 and 1/3 to 4/12. Adding these fractions together gives us 7/12. Therefore, the correct answer is 7/12.

Explanation

To add fractions, we need a common denominator. The common denominator for 1/4 and 1/3 is 12. So, we convert 1/4 to 3/12 and 1/3 to 4/12. Adding these fractions together gives us 7/12. Therefore, the correct answer is 7/12.

10. What is 2/3 times 1/4 in lowest terms?

1/3

1/6

2/6

4/6

To find the product of two fractions, we multiply their numerators together and their denominators together. In this case, multiplying 2/3 and 1/4 gives us (2*1)/(3*4), which simplifies to 2/12. To express this fraction in lowest terms, we can divide both the numerator and denominator by their greatest common divisor, which is 2. Dividing 2/12 by 2 gives us 1/6, which is the final answer.

Explanation

To find the product of two fractions, we multiply their numerators together and their denominators together. In this case, multiplying 2/3 and 1/4 gives us (2*1)/(3*4), which simplifies to 2/12. To express this fraction in lowest terms, we can divide both the numerator and denominator by their greatest common divisor, which is 2. Dividing 2/12 by 2 gives us 1/6, which is the final answer.

11. What is 1 1/2 times 2 1/4?

3 16666666666667/100000000000000

3 3/8

2 7/8

3 1/8

To find the product of two mixed numbers, we multiply the whole numbers together, multiply the fractions together, and then add the two results. In this case, multiplying 1 1/2 by 2 1/4 gives us 3, multiplying 1/2 by 1/4 gives us 1/8, and adding these results gives us 3 1/8. However, none of the given options match this answer. Therefore, the correct answer is not available.

Explanation

To find the product of two mixed numbers, we multiply the whole numbers together, multiply the fractions together, and then add the two results. In this case, multiplying 1 1/2 by 2 1/4 gives us 3, multiplying 1/2 by 1/4 gives us 1/8, and adding these results gives us 3 1/8. However, none of the given options match this answer. Therefore, the correct answer is not available.

12. Which of these fractions is largest?

7/8

13/16

63/80

31/40

The fraction 7/8 is the largest because the numerator (7) is the highest among all the fractions, while the denominators are the same for all the fractions. Therefore, the fraction with the highest numerator will be the largest.

Explanation

The fraction 7/8 is the largest because the numerator (7) is the highest among all the fractions, while the denominators are the same for all the fractions. Therefore, the fraction with the highest numerator will be the largest.

13. What is another way to write the ratio "1 to 5"?

5:1

5X1

1:5

5/1

Another way to write the ratio "1 to 5" is 1:5.

Explanation

Another way to write the ratio "1 to 5" is 1:5.

14. How many pounds are in 3.5 tons?

350 (approx)

3500 (approx)

7000 (approx)

700 (approx)

There are 2000 pounds in one ton. Therefore, to convert tons to pounds, you would multiply the number of tons by 2000. In this case, 3.5 tons multiplied by 2000 equals 7000 pounds.

Explanation

There are 2000 pounds in one ton. Therefore, to convert tons to pounds, you would multiply the number of tons by 2000. In this case, 3.5 tons multiplied by 2000 equals 7000 pounds.

15. What is the area of a triangle that has a base of 8 feet and a height of 9 feet?

36 Feet

72 Square Feet

36 Square Feet

17 Square Feet

The area of a triangle is calculated by multiplying the base and the height of the triangle and dividing the result by 2. In this case, the base is 8 feet and the height is 9 feet. So, the area of the triangle is (8 * 9) / 2 = 36 square feet.

Explanation

The area of a triangle is calculated by multiplying the base and the height of the triangle and dividing the result by 2. In this case, the base is 8 feet and the height is 9 feet. So, the area of the triangle is (8 * 9) / 2 = 36 square feet.