Understanding Rational Numbers and Absolute Values

Mrs. Lehman introduces the concept of absolute value and demonstrates how to convert fractions into decimals and percents. The lesson covers comparing magnitudes, analyzing bank transactions, and ordering rational numbers. Students are given homework to reinforce these concepts.

What is the absolute value of -9?

• 9

• 0

• -9

• 18

How do you convert 4/5 into a percentage?

• 80%

• 20%

• 50%

• 40%

What is the decimal equivalent of 4/5?

• 0.4

• 0.5

• 0.9

• 0.8

Which of the following is true about absolute values?

• Absolute values can be negative.

• Absolute values are always positive.

• Absolute values are always zero.

• Absolute values are always negative.

If you compare the absolute values of -14 and 23, which is larger?

• 23

• -14

• They are equal

• Cannot be determined

What does a withdrawal in a bank account signify?

• Money is added to the account.

• The account balance remains the same.

• Money is removed from the account.

• The account balance doubles.

Which of the following has the greatest impact on a bank account?

• A deposit of $55

• A withdrawal of $58.50

• A deposit of $58.50

• A withdrawal of $55

How do you order rational numbers from least to greatest?

• By their absolute values

• By their decimal representation

• By their distance from zero

• By their numerical value

What is the common denominator for 1/2, 1/4, and 1/8?

• 4

• 2

• 8

• 16

If a pool's water level is above normal, how is it represented?

• As a zero change

• As a negative change

• As a positive change

• As no change