Mathematics

16. 16.A store has two different-sized fish tanks. One fish tank holds 218 liters of water, and the other fish tank holds 145 liters of water. What is the total number of liters for the two fish tanks?

• 133 liters

• 173 liters

• 353 liters

• 363 liters

Answer explanation

To find the total volume of the two fish tanks, add their capacities: 218 liters + 145 liters = 363 liters. Therefore, the correct answer is 363 liters.

17. Which three statements can be represented by the expression 24 ÷ 4?

• A) Jake makes 24 muffins. He gives away 4 muffins.

• B) Collin has 24 toy trucks. He sorts them into groups of 4 trucks each.

• C) Amira has 24 trading cards. She puts them into piles containing 4 cards each.

• D) Rosemary puts 24 stickers in each book. She uses enough stickers to fill 4 books.

• E) Steven fills a new bookshelf with 24 books. He puts the same number of books on each of the 4 shelves.

Answer explanation

The expression 24 ÷ 4 represents dividing 24 into groups of 4. Choices B, C, and E illustrate this concept by grouping or distributing items into sets of 4, while A and D do not represent division.

18.Which expressions are equal to the given expression? 157 + 748. Select the three correct answers.

• 200 + 700

• (160 + 750) – (3 + 2)

• 900 + 5

• 90 + 5

• 150 + 755

Answer explanation

The expression 157 + 748 equals 905. The correct choices simplify to 905: (160 + 750) - (3 + 2) = 905, 900 + 5 = 905, and 150 + 755 = 905. The other options do not equal 905.

19.Select the equation that is true when the number 8 is put into the box.

• 64 divided by □ = 8

• 4 × 4 = □

• 3 × □ = 27

• □ + 2 = 2

Answer explanation

The equation '64 divided by □ = 8' is true when □ is 8, since 64 divided by 8 equals 8. The other options do not yield 8 when 8 is substituted.

22.A brick path has 10 rows of 4 bricks. How many bricks are in the path?

• 40

• 30

• 20

• 50

Answer explanation

To find the total number of bricks, multiply the number of rows by the number of bricks per row: 10 rows × 4 bricks/row = 40 bricks. Therefore, the correct answer is 40.

23.Connie solved the math problem shown. 40 divided by 8 = ? Which equation can Connie use to check her answer?

• 8 + ? = 40

• 40 + 8 = ?

• 8 × ? = 40

• 8 × 40 = ?

Answer explanation

To check her answer for 40 divided by 8, Connie can use the equation 8 × ? = 40. This equation reverses the division, allowing her to find the missing number that, when multiplied by 8, equals 40.

24.Mr. Caden builds a fence around his rectangular backyard that is 8 meters long and 7 meters wide. The perimeter, in meters, of the backyard is:

• 28

• 30

• 32

• 42

Answer explanation

To find the perimeter of a rectangle, use the formula P = 2(length + width). Here, P = 2(8 + 7) = 2(15) = 30 meters. Thus, the correct answer is 30.

26.Freda buys horse food in 20-kilogram bags. Her horse eats 8 bags of horse food per month, so the total amount of horse food eaten in one month is ____ kilograms.

• 140

• 160

• 180

• 200

Answer explanation

Freda's horse eats 8 bags of horse food per month. Each bag weighs 20 kilograms. Therefore, the total amount of horse food eaten in one month is 8 bags x 20 kg/bag = 160 kg. Thus, the correct answer is 160.

26B.Freda’s horse has a mass of 782 kilograms. Kurt’s pony has a mass of 359 kilograms. How much more mass, in kilograms, does Freda’s horse have than Kurt’s pony?

• 403

• 423

• 443

• 463

Answer explanation

To find how much more mass Freda's horse has than Kurt's pony, subtract the pony's mass from the horse's mass: 782 kg - 359 kg = 423 kg. Therefore, the correct answer is 423.

29.Andre visits the library. It takes Andre 26 minutes to walk from his house to the library, he stays at the library 45 minutes, and his mother drives him home in 15 minutes. How many more minutes does Andre spend at the library than traveling to and from the library?

• 4

• 6

• 8

• 10

Answer explanation

Andre spends 45 minutes at the library. The total travel time is 26 + 15 = 41 minutes. The difference is 45 - 41 = 4 minutes. Thus, Andre spends 4 more minutes at the library than traveling.