5th Grade STAAR Math

Mason is trying to solve a puzzle where he needs to find the treasure by decoding a number. The clue says: "Combine 4 times 1,000, 8 times 10, 1 times 0.01, and 2 times 0.001 to unlock the treasure chest!" Which of the following numbers will unlock the treasure for Mason?

• 4,800.012

• 4,080.012

• 4,080.120

• 4,800.12

Answer explanation

To find the standard form, calculate: 4 x 1,000 = 4,000, 8 x 10 = 80, 1 x 0.01 = 0.01, and 2 x 0.001 = 0.002. Adding these gives 4,000 + 80 + 0.01 + 0.002 = 4,080.012, which matches the correct answer.

Tags

CCSS.5.NBT.B.7

CCSS.5.NBT.A.3

CCSS.5.NBT.A.1

Maya is building a bookshelf and needs a nail that is just the right size! It must be between 1.25 inches and 1.75 inches. Can you help her find which nail is greater than 1.25 inches and less than 1.75 inches?

• 1.8 inches

• 1.93 inches

• 1.5 inches

• 1.22 inches

Answer explanation

1.5 inches is the only choice that is greater than 1.25 inches and less than 1.75 inches. The other options either exceed 1.75 inches or are below 1.25 inches.

Tags

CCSS.5.NBT.A.3

Maya, Harper, and Isla are planning a dog party at the city park, which has three exciting dog play spaces. Each play space measures 15.5 feet by 8.2 feet. Can you help them figure out the total area of these dog play spaces so they can invite all their furry friends?

• 40.1 sq. ft.

• 127.1 sq. ft.

• 381.3 sq. ft.

• 508.4 sq. ft.

Answer explanation

To find the total area of the three dog play spaces, first calculate the area of one space: 15.5 ft * 8.2 ft = 127.1 sq. ft. Then multiply by 3: 127.1 sq. ft. * 3 = 381.3 sq. ft. Thus, the correct answer is 381.3 sq. ft.

Tags

CCSS.5.NBT.B.7

Ethan and Ava are solving a math puzzle together. They need to find the value of this expression to unlock the next clue:
[36 + (3×2)] ÷ 6

• 7

• 37

• 13

Answer explanation

First, calculate the expression inside the parentheses: 3×2 = 6. Then, add this to 36: 36 + 6 = 42. Finally, divide by 6: 42 ÷ 6 = 7. Thus, the value of the expression is 7.

Tags

CCSS.5.OA.A.1

Michael and Ava are playing a game with a model shaded to represent two and sixty-hundredths. They need to find out which equation this model represents. Can you help them solve the mystery?

• 2.50 × 5 = 12.5

• 2.60 ÷ 5 = 0.52

• 52 x 5 = 260

• 2.06 ÷ 5 = 0.412

Answer explanation

The model represents 2.60, which corresponds to the equation 2.60 ÷ 5 = 0.52. This shows that dividing 2.60 by 5 results in 0.52, making it the correct choice.

Tags

CCSS.5.NBT.B.7

CCSS.5.NBT.A.3

Liam and Rohan are on a rock-collecting adventure! They found four unique rocks, each with a different mass. The table shows the masses of these rocks. Can you help them figure out which number sentence correctly compares the masses of two of the rocks?

• 0.429>0.438

• 0.438<0.483

• 0.429>0.43

• 0.438=0.43

Answer explanation

The correct comparison is 0.438 < 0.483, as 0.438 is less than 0.483. The other options are incorrect because they either misrepresent the values or state incorrect equalities.

Tags

CCSS.5.NBT.A.3

Olivia and Arjun are on a mission to load an airplane with 98 magical suitcases in the cargo department. Each suitcase is enchanted to weigh about 47 pounds. Can you help them estimate the total magical weight?

• 3,600 pounds

• 4,500 pounds

• 5,000 pounds

• 150 pounds

Answer explanation

To estimate the total weight, multiply the number of suitcases (98) by the weight of each suitcase (47 pounds). 98 x 47 is approximately 4,606 pounds, which rounds to 5,000 pounds, making it the most reasonable estimate.

Tags

CCSS.5.NBT.B.5

Olivia made a giant pot of her famous vegetable soup, totaling 22.80 quarts. She decided to share the delicious soup equally among her 15 friends at the picnic. How much soup will each friend get to enjoy?

• 152

• 15.2

• 1.52

• 1.42

Answer explanation

To find the amount of soup in each container, divide the total soup (22.80 quarts) by the number of containers (15). This gives 22.80 ÷ 15 = 1.52 quarts per container, making 1.52 the correct answer.

Tags

CCSS.5.NBT.B.7

CCSS.5.MD.C.5

CCSS.5.MD.A.1

In the annual school sports day, Hannah leaped 3.43 meters in the long jump. Ethan, known for his incredible jumping skills, managed to jump even farther than Hannah. Which comparison could correctly represent the jumps made by Hannah and Ethan?

• 3.43 < 2.54

• 2.97 < 3.43

• 4.18 > 3.43

• 3.43 > 1.67

Answer explanation

Tammy jumped farther than Sarah, who jumped 3.43 meters. The correct comparison is 4.18 > 3.43, indicating Tammy's jump was greater than Sarah's.

Tags

CCSS.5.NBT.A.3

Emma and Aria were having a math race! Emma divided 57.42 by 6, while Aria tackled 5,742 by 6.   Can you figure out how their quotients are alike?

• The quotients have the same digits, but the decimal points are in different places.

• The quotients are the same because the digits in the divisors and the dividends are the same.

• The quotients are alike because the first digit in both quotients is in the hundreds place.

• The quotients are alike because they are whole numbers.

Answer explanation

Both quotients, 9.57 and 954.2, contain the same digits (9, 5, 7, 4, 2) but differ in their decimal placements. This shows that the structure of the numbers is similar despite their different values.

Tags

CCSS.5.NBT.B.7

CCSS.5.NBT.A.3

CCSS.5.NBT.A.1

CCSS.5.NBT.A.2