Understanding Negative Numbers and Operations

This video tutorial covers evaluating true or false statements involving rational numbers, focusing on multiplication and subtraction. It then moves on to evaluating expressions with given values for variables a and b, emphasizing the use of opposites and reciprocals. The tutorial also includes a section on comparing expression values to determine the largest, smallest, and closest to zero. Finally, it encourages students to engage in additional practice using provided resources.

What is the result of multiplying two negative numbers?

• Zero

• It depends on the numbers

• A negative number

• A positive number

If you subtract a larger number from a smaller number, what is the result?

• A positive number

• A negative number

• Zero

• It depends on the numbers

What is the opposite of -1/2?

• 1/2

• 2

• -1/2

• 0

How do you find the reciprocal of a fraction?

• Multiply the fraction by 2

• Subtract 1 from the fraction

• Flip the numerator and denominator

• Add 1 to the fraction

What is the result of squaring a negative number?

• A positive number

• A negative number

• Zero

• It depends on the number

Which of the following is closest to zero?

• 1/2

• 1/12

• 1/4

• 1/8

What is the cube of -6?

• 216

• -216

• 36

• -36

Which expression has the largest value when a = -1/2 and b = 6?

• 1/12

• 6 and 1/2

• 216

• Negative 24

What is the smallest value when a = -1/2 and b = 6?

• 216

• Negative 24

• 6 and 1/2

• 1/12

What activity can you do for additional practice?

• Solve more equations

• Read a textbook

• Play with seagulls and sharks

• Watch a video