Operations With Real Numbers

2  3/4 + (-1/4) = 

• 2  1/2

• 3

• -2  1/2

• 3 1/4

Tags

CCSS.7.NS.A.1C

-25 - (1/4) = 

• -24  3/4

• -25  1/4

• -21

• 24

Tags

CCSS.7.NS.A.1C

2 3/4 - (-1/4) = 

• 2  1/2

• 3  1/4

• 3

• -3

Tags

CCSS.7.NS.A.1C

What are Real Numbers?

• The set of all rational and irrational numbers.

• Numbers that can only be expressed as fractions.

• Numbers that are only whole numbers.

• Numbers that are only decimals.

Answer explanation

Real numbers include both rational numbers (fractions) and irrational numbers (non-repeating, non-terminating decimals). Thus, the correct choice is 'The set of all rational and irrational numbers.'

What is the Distributive Property?

• A property indicating a special way in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses.

• A property that shows how to add numbers.

• A property that indicates the order of operations.

• A property that defines rational numbers.

Answer explanation

The Distributive Property states that a factor outside parentheses can be multiplied by each term inside, allowing for easier calculations. This makes the first answer choice correct.

Tags

CCSS.3.OA.B.5

What is the Order of Operations?

• The order in which operations in an expression are evaluated using PEMDAS.

• The order in which numbers are added.

• The order in which equations are solved.

• The order in which graphs are drawn.

Answer explanation

The correct choice explains that the Order of Operations refers to the sequence of evaluating expressions using PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction), which is essential for accurate calculations.

Tags

CCSS.7.NS.A.3

To avoid confusion, mathematicians have agreed on a(n) ______________________, which are rules that state which numbers are calculated first in an expression.

• mathematical order

• operational firsties

• first calculatory rule

• order of operations

Tags

CCSS.7.NS.A.3

_____________________ are numbers on the number line that are the same distance from zero, but in different directions.

• values

• integers

• opposites

• whole numbers

Tags

CCSS.6.NS.C.6A

6+(4²-1)

• 13

• 21

• 25

• 9

Tags

CCSS.7.NS.A.3

(4+3)x2³

• 56

• 28

• 54

• 45

Tags

CCSS.6.EE.A.1