Math STAAR 2017 11-20

Thomas planted a seed and measured the height of the stem each week for four weeks.

• The stem grew 1 inch in the first week.

• The stem grew 2 inches each week after the first week. Which graph represents the growth of this plant?

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Aspen added 14 to the product of 224 and 16. What is this sum?

• 3,478

• 3,598

• 3,808

• 3,584

Brenda said that the number 2 is prime because it has only two factors. Carla said that the number 2 is composite because it is even, and all even numbers are composite. Who is correct?

• Brenda is correct.

• Carla is correct.

• Both of them are correct

• Neither of them is correct

Theo earned $500 selling food at a carnival. He earned $260 selling nachos and the rest selling hot dogs for $2 each. Theo used this equation to find h, the number of hot dogs he sold at the carnival.

h = (500 - 260) ÷ 2

How many hot dogs did Theo sell at the carnival?

• 380

• 180

• 370

• 120

In the diagram shown each circle represents a group of polygons. If a polygon belongs in a circle, it also belongs in any larger circle. Which kind of polygon belongs in the shaded circle?

• Trapezoids

• Squares

• Pentagons

• Rhombuses

Margaret opened a new case of lightbulbs.

• The case contained 3 boxes of lightbulbs with 8 lightbulbs in each box.

• Margaret threw 2 of these lightbulbs in the trash because they were damaged.

• Then she took 7 of the lightbulbs out of the case.

Which expression can be used to show that there are 15 lightbulbs still in the case?

• 3 × 8 − 2 + 7

• 3(8) − 2(7)

• 3 × 8 − (2 + 7)

• 3 + 8 − 2 + 7

Mia’s dog weighs 32.6 pounds. Lettie’s dog weighs 3.8 times as much as Mia’s dog. What does Lettie’s dog weigh in pounds?

• 36.40 lb

• 12.388 lb

• 96.48 lb

• 123.88 lb

Mr. Ávalos has 9.375 liters of paint. What is this number rounded to the nearest hundredth?

• 9.40

• 9.38

• 9.37

• 9.47

The length of a piece of yarn is 19.2 units. Jesse cut the piece of yarn into 4 smaller pieces that were all the same length. Which expression represents the length of each smaller piece of yarn?

• 19.2 x 4

• 19.2 - 4

• 19.2 ÷ 4

• 19.2 + 4

A definition of a financial term is shown in the box. Which term best fits this definition?

• Payroll tax

• Property tax

• Sales tax

• Gasoline tax