Unit Test Answers

Dan is using tiles to add . He begins with the tiles shown below.What is the sum of ?

Hector must find the sum of by using mental math. Which property allows Hector to simplify the equation to and find an equivalent sum?

Which number is the additive inverse of –5?

Rashal is adding the expression below.First, he rewrites the expression.Which number property did Rashal use to rewrite the expression?

Which expression has the same value as ?

Ms. Chin asked her students to use the properties of multiplication to rewrite the expression . The table below shows the properties that each of four students used to rewrite the expression.Expressions Generated by StudentsStudentProperties used to rewrite the expressionMitulCommutative propertyStacyAssociative propertyTomAssociative property and then the commutative propertyWaltCommutative property and then the associative propertyHow many of the students created an expression that was equivalent to the original?

What is the difference between the absolute value of –8 and the absolute value of 6?

Which expression has a negative value?

Yasmine finds the absolute value of –655. Which expression represents this value?

Dylan scored a total of 48 points in first 4 games of the basketball season. Which equation can be used to find g, the average number of points he scores per game?

When multiplying two negative integers, what is the sign of the product?

What is the difference between –4 and 6?

What is the product?

How is the product of 4 and 2 shown using integer tiles?

Which product is modeled by the number line below?

Which addition does the model below represent?

What is the product of 25 and –6?

What is the absolute value of –8? Use the number line to help answer the question.

Which expression has the same value as the one below?

What is the value of ?

What is the distance between –3 and 2 on the number line?

Which expression is undefined?

What is the value of ?

What is the value of ?

Which number line plots the integers –2, 3, and 4?