3rd Grade Common Assessment #2

Erika’s goal is to practice playing her guitar for 300 minutes this week. - On Sunday she practiced for 117 minutes. - On Tuesday she practiced for 58 minutes. How many more minutes does Erika need to practice in order to meet her goal?

• 125 minutes

• 235 minutes

• 475 minutes

• 175 minutes

Vicente hung three posters in his bedroom. - The first poster had a length of 59 centimeters. - The second poster had a length of 92 centimeters. - The third poster had a length of 127 centimeters. What is the best estimate of the total length of these three posters in centimeters?

• 260 cm

• 350 cm

• 240 cm

• 280 cm

Tom completed 3 levels of a computer game. - He won 564 points in Level 1. - He won 292 points in Level 2. - He lost 209 points in Level 3. Which equations can be used to find the total number of points Tom had at the end of Level 3? Select TWO correct answers.

• 564 + 209 =

• 564 + 292 – 209 =

• 564 + 209 + 292 =

• 564 - 292 - 209 =

• 564 - 209 + 292 =

What is the perimeter of the cover of Gina’s journal in centimeters?

Chris built a fort using prisms. Which figure is NOT one Chris could have used to build his fort?

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At the beginning of September, Mr. Watkins had 543 erasers. During September he gave his students 99 of the erasers. During October he gave his students 212 of the erasers. How many erasers did Mr. Watkins have at the end of October?

• 854

• 232

• 430

• 344

The total number of keys on a computer keyboard is 87. There are 26 letter keys and 21 special symbol keys on the keyboard. The rest of the keys are function keys. Which model represents one way to find the number of function keys on the keyboard?

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Camille sorted shapes into two labeled groups. She sorted two shapes incorrectly. Which shapes did Camille sort incorrectly?

• trapezoid and triangular prism

• pentagon and cube

• trapezoid and cube

• pentagon and triangular prism

Mrs. Ochoa wants to buy two rectangular rugs for her library. Her choices are shown in the diagram. Mrs. Ochoa wants the two rugs to have the same perimeter. Which two rugs have the same perimeter?

• Rugs Q and S

• Rugs P and Q

• Rugs S and T

• Rugs Q and T

Veronica sorted shapes into three groups based on a common characteristic.

Choose the correct answer from the drop-down menu to complete the statement. All the figures in Group A are ______ because they have ______.