The video tutorial explains how to evaluate expressions by following the order of operations. It demonstrates simplifying expressions within parentheses using integer chips and number lines. The tutorial covers two expressions: 'three minus nine' and 'seven minus twelve', showing how to convert subtraction into addition of negatives. The results are verified using a calculator, and the tutorial concludes with a summary of the simplified expressions.

What is the first step in evaluating expressions according to the order of operations?

• Evaluate exponents

• Add and subtract from left to right

• Multiply and divide from left to right

• Simplify within the parentheses

Tags

CCSS.7.NS.A.1B

How can 3 - 9 be rewritten to simplify the expression?

• 3 - 0

• 3 - (-9)

• 3 + (-9)

• 3 + 9

Tags

CCSS.7.NS.A.1B

What is the result of 3 + (-9) using integer chips?

• 0

• 6

• -6

• 9

Tags

CCSS.7.NS.A.1C

What does subtracting a negative number equate to?

• Subtracting zero

• Adding a negative number

• Adding a positive number

• Subtracting a positive number

Tags

CCSS.7.NS.A.1C

What is the final result of the expression 2 - (-6)?

• 10

• 8

• 6

• 4

Tags

CCSS.7.NS.A.1B

How can 7 - 12 be rewritten to simplify the expression?

• 7 - 0

• 7 - (-12)

• 7 + (-12)

• 7 + 12

Tags

CCSS.7.NS.A.1B

What is the result of 7 + (-12) using integer chips?

• 12

• 0

• 5

• -5

Tags

CCSS.7.NS.A.1C

What is the result of adding two negative numbers, -5 + (-5)?

• 5

• 0

• 10

• -10

Tags

CCSS.7.NS.A.1C

What is the final result of the expression -5 + (-5)?

• -15

• -10

• 0

• 5

Tags

CCSS.6.EE.A.2C

How can the results of the expressions be verified?

• Using a protractor

• Using a ruler

• Using a compass

• Using a calculator

Tags

CCSS.6.EE.A.2C