Q1_Vocabulary Quiz pt. 2

During Halloween, Marlowe is trying to understand prime numbers while carving pumpkins. Which of the following statements best describes a prime number?

• A number greater than 1 divisible only by 1 and itself.

• A math puzzle that Marlowe needs to solve during Halloween.

• A number that is not divisible by 2.

Answer explanation

A prime number is a number greater than 1 that has only two factors: 1 and itself. This means it can only be divided by 1 and itself without leaving a remainder. The other options do not accurately describe prime numbers, as they refer to a math puzzle or numbers not divisible by 2.

Tags

CCSS.4.OA.B.4

During a Halloween party, Simon, Meelo, and Leah are discussing math terms while carving pumpkins. Simon says a "factor" is the result of multiplying two numbers. Meelo believes that a "factor" is a number that you multiply with another number to get a product. Leah thinks it's a number representing an unknown value in an equation. Who is correct?

• Simon: The result of multiplying two numbers.

• Meelo: a number that you multiply with another number to get a product

• Leah: A number representing an unknown value in an equation.

Answer explanation

Meelo is correct. A factor is a number that you multiply with another number to get a product. Simon's definition is incorrect, as he is describing the product itself, not the factor. Leah's definition is also incorrect, as she is describing a variable, not a factor.

Tags

CCSS.4.OA.B.4

What is a variable in mathematics?

• A whole number greater than 1 that can be divided evenly by only 1 and itself.

• A number that is not divisible by 2.

• A number that changes and can represent an unknown value in an equation.

Answer explanation

A variable in mathematics is a symbol that represents an unknown value in an equation or expression. It can change and take on different values depending on the context. The correct choice is the one that describes a variable as a number that changes and can represent an unknown value in an equation. The other options refer to prime numbers and odd numbers, which are not related to variables.

During Halloween, Piper, Leah, and Alli are helping their teacher, Emma, to arrange the candies in a spooky box. What is the term for arranging these candies in rows and columns, just like they do for multiplication in their math class?

• Factor

• Array

• Product

Answer explanation

In the question, Piper, Leah, and Alli are arranging books in rows and columns, similar to multiplication in math class. The correct term for this arrangement is 'Array', as it refers to a systematic arrangement of objects in rows and columns. The other options, 'Factor' and 'Product', are related to multiplication but do not describe the arrangement of objects.

Tags

CCSS.3.OA.A.1

On Halloween night, Charlie, Marlowe, and Simon each roll a spooky dice with numbers 1 to 6 on it and note down the number they get. They then multiply the three numbers together. What do we call the result of this multiplication in math?

• Array

• Equation

• Product

Answer explanation

In the given question, Charlie, Marlowe, and Simon each spin a wheel and get a number. They then multiply these numbers together. The result of this multiplication is called the 'Product' in mathematics, which is the correct choice among the given options.

Tags

CCSS.5.NBT.B.7

Emma, Oliver, and Abigail are discussing math equations. Oliver says, "An equation is a sentence showing two expressions are equal." What is an equation in math according to Oliver's statement?

• A number not divisible by 2.

• A sentence showing two expressions are equal.

• A whole number greater than 1, divisible only by 1 and itself.

Answer explanation

According to Oliver's statement in the question, an equation in math is a sentence showing two expressions are equal. This is clearly reflected in the correct option, which states that an equation is 'A sentence showing two expressions are equal.' Therefore, this is the correct answer.

Tags

CCSS.6.EE.A.2C

During a Halloween party, Chris, Emma, and Leah are trying to figure out who is wearing the ghost costume based on the clues provided. What are they trying to do?

• To infer, which means making a guess based on evidence or reasoning.

• To add two or more numbers together.

• To find the prime factors of a number.

Answer explanation

In the question, Chris, Emma, and Leah are trying to figure out the culprit in a mystery novel based on the clues provided. This process is called 'inferring', which means making a guess based on evidence or reasoning. The other options, adding numbers together and finding prime factors, are not relevant to the context of the question.

Tags

CCSS.L.4.6

CCSS.RI.4.4

CCSS.RI.5.4

CCSS.W.4.2D

CCSS.W.5.2D