Unit 3 Check for Readiness

At the spring concert, the school orchestra made 9/8 as much money as at their fall concert. Did they make more money at the spring or the fall concert?

• Spring concert

• Fall concert

• Same amount

• Not enough information

Answer explanation

The school orchestra made 9/8 as much as the fall concert's earnings at the spring concert, which means they earned more at the spring concert. Therefore, the correct answer is the spring concert.

Which of the following is a unit used to measure volume?

• Inches

• Pounds

• Tablespoons

• Meters

Answer explanation

Tablespoons are a unit of volume measurement, commonly used in cooking. Inches measure length, pounds measure weight, and meters measure distance, making tablespoons the correct choice for volume.

About how long is a textbook?

• 1 meter

• 30 centimeters

• 1 kilometer

• 10 meters

Answer explanation

A typical textbook is about 30 centimeters long, which is a standard size for many educational books. The other options, like 1 meter or 1 kilometer, are too long for a single textbook.

About how long is a car?

• 1 meter

• 4 meters

• 10 meters

• 100 meters

Answer explanation

A typical car is about 4 meters long, making this the most accurate choice. Options like 1 meter are too short, while 10 and 100 meters are excessively long for standard vehicles.

Which of the following is not a unit of length?

• Inches

• Liters

• Miles

• Centimeters

Answer explanation

Liters measure volume, not length. Inches, miles, and centimeters are all units of length, while liters are used to quantify liquids.

Which of the following is not a unit of volume?

• Gallons

• Liters

• Meters

• Cups

Answer explanation

Meters is a unit of length, not volume. Gallons, liters, and cups are all units used to measure volume.

At the spring concert, the school orchestra made 9/8 as much money as at their fall concert. If the orchestra made $800 at the fall concert, how much did they make at the spring concert?

• $700

• $900

• $1000

• $720

Answer explanation

The orchestra made 9/8 of $800 at the spring concert. Calculate: (9/8) * 800 = 900. Therefore, they made $900 at the spring concert.

Which unit would you use to measure the volume of a swimming pool?

• Kilometers

• Liters

• Grams

• Inches

Answer explanation

Liters are the appropriate unit for measuring the volume of a swimming pool, as they quantify liquid capacity. Kilometers measure distance, grams measure weight, and inches measure length, making them unsuitable for this context.

What is the result of 5 ÷ 4 expressed as a decimal?

• 1.25

• 1.5

• 0.8

• 1.75

Answer explanation

To find 5 ÷ 4, divide 5 by 4, which equals 1.25. This is the decimal representation of the fraction 5/4, confirming that the correct answer is 1.25.

What is the result of 30 ÷ 12 expressed as a decimal?

• 2.5

• 2.0

• 1.5

• 1.25

Answer explanation

To find 30 ÷ 12, divide 30 by 12, which equals 2.5. This is the correct decimal representation of the division.