Opposites on a Number Line

Mrs. Bobby introduces lesson 4, focusing on understanding opposites of numbers and their positions on a number line. The lesson includes examples of finding opposites, such as negative and positive numbers, and labeling them on a number line. Real-world applications, like charges and financial transactions, are discussed to illustrate the concept. The lesson concludes with a summary and final thoughts.

What is the opposite of a negative number on a number line?

• Zero

• A larger negative number

• The same negative number

• A positive number

If a number is 5 steps to the left of zero on a number line, what is its opposite?

• 10 steps to the right

• 10 steps to the left

• 5 steps to the right

• 5 steps to the left

How many steps away from zero is the opposite of 10 on a number line?

• 15 steps

• 5 steps

• 20 steps

• 10 steps

What is the opposite of 9 on a number line?

• -9

• -1

• 0

• 9

Where is the opposite of -4 located on a number line?

• 8 steps to the right of zero

• 4 steps to the left of zero

• At zero

• 4 steps to the right of zero

In a real-world context, what is the opposite of a positive charge of 7?

• A positive charge of 14

• A negative charge of 7

• A positive charge of 0

• A negative charge of 14

If you have a positive balance of $25, what is the opposite transaction?

• A deposit of $25

• A withdrawal of $25

• A deposit of $50

• A withdrawal of $50

On a number line, what does zero represent in terms of a bank account?

• A positive balance

• A negative balance

• No balance

• The balance point

What is the opposite of a credit of 38 on a number line?

• A debit of 76

• A credit of 76

• A debit of 38

• A credit of 0

How is a balance beam similar to a number line in terms of balance?

• Both have a neutral point

• Both have a negative side only

• Both have a positive side only

• Both are used in science class