Math Review 1

Mrs. Brown was preparing lemonade for her family picnic. Which measurement is most likely the amount of lemonade she prepared?

• 3 milliliters

• 3 centimeters

• 3 liters

• 3 grams

Answer explanation

Mrs. Brown is preparing lemonade for a picnic, which typically requires a larger volume. 3 liters is a reasonable amount for a family gathering, while 3 milliliters, 3 centimeters, and 3 grams are too small for lemonade.

Maria measured a curtain that is 15 feet long. How many inches long is the curtain that Maria measured?

• 180 inches

• 150 inches

• 160 inches

• 170 inches

Answer explanation

To convert feet to inches, multiply the length in feet by 12. Maria's curtain is 15 feet long, so 15 x 12 = 180 inches. Therefore, the correct answer is 180 inches.

Ann bought a new aquarium for her fish. Which measurement best describes the amount of water she may need to fill the aquarium?

• 10 fluid ounces

• 10 gallons

• 10 pounds

• 10 feet

Answer explanation

The best measurement for the amount of water needed to fill an aquarium is in gallons, as it is a standard unit for liquid volume. Therefore, 10 gallons is the correct choice.

Which measurement best describes the length of the table?

• 3 meters

• 3 centimeters

• 3 feet

Answer explanation

The length of a table is typically measured in feet for furniture. 3 feet is a reasonable length for a table, while 3 meters (too long) and 3 centimeters (too short) are not practical measurements for this context.

Ruby divided a 16-meter rope into 8 equal parts. What is the length of each part in centimeters? (1 meter = 100 centimeters)

• 200 cm

• 160 cm

• 20 cm

• 2,000 cm

Answer explanation

Ruby divided a 16-meter rope into 8 equal parts, so each part is 16 ÷ 8 = 2 meters. Converting to centimeters, 2 meters = 2 × 100 = 200 cm. Therefore, the length of each part is 200 cm.

Joe is 5 feet 9 inches tall. His son Jake is 3 feet 11 inches tall. How much taller is John than Jake? (1 foot = 12 inches)

• 1 foot 10 inches

• 2 feet 2 inches

• 1 foot 8 inches

• 2 feet 4 inches

Answer explanation

Joe is 5 feet 9 inches tall, which is 69 inches. Jake is 3 feet 11 inches tall, which is 47 inches. The difference is 69 - 47 = 22 inches, or 1 foot 10 inches. Therefore, Joe is 1 foot 10 inches taller than Jake.

Coach J. bought a box of 30 tennis balls. The mass of each tennis ball is 58 grams. What is the mass of all 30 tennis balls in grams?

• 88 g

• 108 g

• 250 g

• 1,740 g

Answer explanation

To find the total mass of 30 tennis balls, multiply the mass of one ball (58 g) by the number of balls (30). So, 58 g x 30 = 1,740 g. Therefore, the correct answer is 1,740 g.

Ethan leaves for work at 7:55 A.M. After driving for 20 minutes, he arrives at work on time. He works for 40 minutes and is then called to a meeting. His meeting lasts 45 minutes. Ethan then takes a 15 minute break. After his break, he returns to work. At what time does Ethan return to work?

• 9:00 A.M.

• 9:55 A.M.

• 9:20 A.M.

• 9:30 A.M.

Answer explanation

Ethan leaves at 7:55 A.M., drives for 20 minutes, arriving at 8:15 A.M. He works for 40 minutes until 8:55 A.M., then attends a 45-minute meeting, ending at 9:40 A.M. After a 15-minute break, he returns at 9:55 A.M.

Using the points in the figure, identify a line segment, a right angle, an obtuse angle, a set of parallel lines, and a set of perpendicular lines.

• A line segment is AB, a right angle is ∠ABD, a straight angle is ∠ABC, parallel lines are HG and LK, perpendicular lines are AC and BD.

• A line segment is CD, a right angle is ∠DEF, an obtuse angle is ∠ABC, parallel lines are KL and MN, perpendicular lines are OP and QR.

• A line segment is EF, a right angle is ∠GHI, an obtuse angle is ∠JKL, parallel lines are AB and CD, perpendicular lines are EF and GH.

• A line segment is GH, a right angle is ∠IJK, an obtuse angle is ∠LMN, parallel lines are OP and QR, perpendicular lines are ST and UV.

Answer explanation

The correct choice identifies line segment AB, right angle ∠ABD, parallel lines HG and LK, and perpendicular lines AC and BD, accurately matching the definitions of each geometric term.

Aiden is building a ramp for his skateboard. The side view of the ramp forms a triangle. Which name best describes the triangle?

• Right Triangle

• Acute Triangle

• Obtuse Triangle

Answer explanation

The ramp forms a triangle with a right angle, making it a Right Triangle. Right triangles have one angle that is exactly 90 degrees, which is typical for ramps to ensure stability and proper incline for skateboarding.