5th Grade Staar Math

1. A recipe for one batch of cookies uses 1.25 cups of butter. How many cups of butter are needed to make 6 batches of cookies?

A) 7.5 cups

B) 4.75 cups

C) 7.25 cups

D) 6.5 cups

Explanation:

To find the total butter for 6 batches, multiply the butter for one batch (1.25 cups) by 6:

1.25 × 6 = 7.5 cups.

2. Which numbers have a value less than 1.069? Select TWO.

A)1.08
B) 1.1
C) 1.052
D) 1.071
E) 1.003

Answer: 1.052 and 1.003

Explanation: Both are smaller than 1.069 when you compare the digits after the decimal.

3. Dyna’s house is 6.85 kilometers from Carl’s house. Sanjay’s house is 2 3/10 kilometers closer to Carl’s house than Dyna’s house is. What is the distance in kilometers from Sanjay’s house to Carl’s house?

Options:

• A) 9.15 km

• B) 4.55 km

• C) 8.15 km

• D) 4.82 km

Answer: 12 minutes and 18 minutes

Explanation:

• 10 appears once in the list (needs 1 dot).

• 18 appears four times (needs 1 more dot to match the data).

Answer: D It is an additive pattern because each y-value is determined by adding 10 to the corresponding x-value.

Explanation: Each y-value is 10 more than x (e.g., 4 + 10 = 14, 8 + 10 = 18).

Answer:

• 4 in. × 2 in. × 8 in. = 64 cubic inches

• 4 in. × 4 in. × 4 in. = 64 cubic inches

Explanation: Volume = length × width × height. Only these multiply to 64.

7. A farmer divided 124.8 pounds of berries equally into 8 baskets. How many pounds of berries went into each basket?

   A 1.56 lb

   B 10.6 lb

   C 3.1 lb

   D 15.6 lb

Answer: D) 15.6 lb

Explanation: Divide total by 8:
124.8 ÷ 8 = 15.6 lb.

Answer: B) 3/7

Explanation: Total votes = 15 + 20 + 10 = 45. Casey’s fraction: 15/35 = 3/7

Step 1: Find the Greatest Common Divisor (GCD) of 15 and 35

The GCD is the largest number that divides both the numerator (15) and denominator (35) without leaving a remainder.

• Factors of 15: 1, 3, 5, 15

• Factors of 35: 1, 5, 7, 35

The greatest common factor is 5.

9. jar has 110 coins: 15 quarters, 62 nickels, and the rest are dimes. Which equation finds the number of dimes (dd)?

   
   Options:
   A) d=110+62−15d=110+62−15
   B) d=110−62+15d=110−62+15
   C) d=110+62+15d=110+62+15
   D) d=110−62−15d=110−62−15

Answer: D) d=110−62−15d=110−62−15

Explanation: Subtract nickels and quarters from the total: 110 – 62 – 15 = 33 dimes.

10. What is (8×4+2)÷2?

    
    Options:
    A) 24
    B) 9
    C) 17
    D) 33

Answer: C) 17

Explanation: Solve step-by-step:

Step 1: 8 × 4 = 32

Step 2: 32 + 2 = 34

Step 3: 34 ÷ 2 = 17.