Multiplying and Adding Integers

This video tutorial covers multiplying signed numbers, evaluating expressions, and solving real-life math problems. It includes partner activities, homework instructions, and rules for multiplying positive and negative numbers. The tutorial also explores problem-solving scenarios involving submarines and aircraft, as well as calculating distance based on cycling speed and time.

What is the result of multiplying -1 by -3?

• -1

• 3

• 1

• -3

If you multiply a negative number by a positive number, what is the result?

• Undefined

• Negative

• Zero

• Positive

What is the product of 2.5 and 3.25?

• 7.5

• -7.5

• 8.125

• -8.125

When multiplying two negative numbers, what is the result?

• Negative

• Positive

• Zero

• Undefined

What is the result of -5 multiplied by 1/5?

• 5

• -1

• 1

• -5

Which of the following numbers is the smallest: -5, -2.5, 0, 5.5?

• 5.5

• 0

• -2.5

• -5

What is the sum of 15, -7, and 8?

• 16

• 1

• 0

• -16

What is the difference in height between an aircraft at 200m above and a submarine at 55m below the surface?

• 200m

• 55m

• 255m

• 145m

If CLA cycles at 12 mph for 45 minutes, how far does she travel?

• 12 miles

• 9 miles

• 15 miles

• 6 miles

What is the distance between two cyclists if one is at 9 miles and the other at -6 miles from the starting point?

• 15 miles

• 9 miles

• 3 miles

• 6 miles