Dividing Numbers and Decimals

This video tutorial covers the rules for determining the sign of a quotient of rational numbers, similar to finding the sign of a product. It includes examples such as calculating changes in Bob's bank account and Dave's swimming pool water level. The tutorial also explains division with decimals and introduces complex fractions.

What is the result when dividing two numbers with unlike signs?

• An undefined result

• Zero

• A negative quotient

• A positive quotient

If Bob's cell phone bill is the same each month, how do you calculate the monthly change in his bank account?

• Subtract the total from the number of months

• Add the total to the number of months

• Divide the total by the number of months

• Multiply the total by the number of months

How much does Bob's account change annually if it changes by $42.25 each month?

• $537

• $507

• $527

• $517

When dividing two negative numbers, what is the sign of the quotient?

• Negative

• Undefined

• Positive

• Zero

What is the quotient of -86.1 divided by -7?

• 12.3

• -12.3

• 13.2

• -13.2

How much water does Dave's pool lose per day if it loses 0.21 meters per week?

• 0.03 meters

• 0.03 meters

• 0.03 meters

• 0.03 meters

What is the result of dividing 72 by -9?

• -9

• 9

• -8

• 8

What is the quotient of -0.42 divided by -0.7?

• 0.6

• -0.6

• 0.7

• -0.7

What happens to the decimal point when dividing decimals?

• It disappears

• It moves to the left

• It moves to the right

• It stays in the same place

What is a complex fraction?

• A fraction with a negative number

• A fraction with a decimal

• A fraction where the numerator or denominator is also a fraction

• A fraction with a whole number