Integer Operations and Expressions

The video tutorial explains how to simplify or evaluate expressions by following the order of operations. It covers converting subtraction into addition, adding integers with the same sign, and the importance of performing multiplication before addition. The tutorial also discusses adding integers with different signs, emphasizing the use of absolute values to determine the result's sign.

What is the first step in simplifying an expression with parentheses?

• Add all numbers

• Simplify inside the parentheses

• Subtract all numbers

• Perform multiplication

Tags

CCSS.7.NS.A.1C

How can you rewrite the subtraction of a positive number?

• As the addition of a positive number

• As the subtraction of a negative number

• As the addition of a negative number

• As the multiplication of a negative number

Tags

CCSS.7.NS.A.1C

What is the result of adding two negative integers?

• An undefined value

• A positive integer

• A negative integer

• Zero

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

When rewriting an expression, which operation should be performed first according to the order of operations?

• Division

• Multiplication

• Subtraction

• Addition

Tags

CCSS.7.NS.A.2A

What is the result of multiplying a positive number by a negative number?

• An undefined value

• A positive number

• A negative number

• Zero

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the product of 2 and -14?

• -28

• 28

• 14

• 0

Tags

CCSS.7.NS.A.1C

When adding integers with different signs, what should you do?

• Subtract their absolute values

• Divide their absolute values

• Add their absolute values

• Multiply their absolute values

Tags

CCSS.7.NS.A.1C

What determines the sign of the result when adding integers with different signs?

• The sign of the last integer

• The sign of the smaller absolute value

• The sign of the larger absolute value

• The sign of the first integer

Tags

CCSS.6.NS.C.7C

What is the absolute value of -28?

• 14

• 0

• -28

• 28

Tags

CCSS.7.NS.A.3

What is the final result of the expression 13 + 2 * -14?

• -15

• 5

• -5

• 15

Tags

CCSS.7.NS.A.3