The Final Stretch (Part 4)

Answer explanation

To solve for x, subtract 5 from both sides: 3x + 5 - 5 = 20 - 5. This simplifies to 3x = 15. Divide by 3 to get x = 5.

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DOK Level 2: Skill/Concept

Calculate the area of a rectangle with length 8 cm and width 5 cm.

• 13 cm²

• 40 cm²

• 20 cm²

• 80 cm²

Answer explanation

To calculate the area of a rectangle, multiply the length by the width. In this case, 8 cm * 5 cm = 40 cm². Therefore, the correct answer is 40 cm².

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DOK Level 2: Skill/Concept

Identify the shape: A polygon with four equal sides and four right angles.

• Rectangle

• Square

• Rhombus

• Trapezoid

Answer explanation

The correct shape is a Square because it has four equal sides and four right angles, making it a special type of rectangle.

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DOK Level 2: Skill/Concept

Convert 3 meters to centimeters.

• 30 cm

• 300 cm

• 3000 cm

• 3 cm

Answer explanation

To convert meters to centimeters, we multiply by 100. Therefore, 3 meters is equal to 3 * 100 = 300 centimeters, so the correct answer is 300 cm.

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DOK Level 2: Skill/Concept

Answer explanation

To find the amount of pizza left, subtract the amount eaten from the original amount: 3/4 - 1/2 = 3/8. Therefore, you have 3/8 of the pizza left.

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DOK Level 2: Skill/Concept

• 6

• 9

• 7

• 14

Answer explanation

Apply the order of operations: 3 + 5 * 2 - 4 = 3 + 10 - 4 = 13 - 4 = 9. Therefore, the correct answer is 9.

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DOK Level 2: Skill/Concept

Answer explanation

Subtract 2x from both sides to isolate x: -7 = x + 1. Then, subtract 1 from both sides to get x = -1.

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DOK Level 3: Strategic Thinking

Calculate the perimeter of a triangle with sides 5 cm, 12 cm, and 13 cm.

• 20 cm

• 30 cm

• 25 cm

• 40 cm

Answer explanation

To calculate the perimeter of a triangle, add the lengths of all three sides: 5 cm + 12 cm + 13 cm = 30 cm. Therefore, the correct answer is 30 cm.

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DOK Level 3: Strategic Thinking

Classify the shape: A three-dimensional figure with six congruent square faces.

• Cube

• Rectangular Prism

• Pyramid

• Cylinder

Answer explanation

Classify the shape as a cube since it has six congruent square faces, making it the correct choice.

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DOK Level 3: Strategic Thinking

Convert 2.5 kilograms to grams.

• 250 grams

• 2500 grams

• 25 grams

• 25000 grams

Answer explanation

To convert kilograms to grams, multiply by 1000. Therefore, 2.5 kilograms is equal to 2500 grams.

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DOK Level 3: Strategic Thinking