01:16 duration 1 minute 16 seconds
Evaluating an algebraic expression: Whole numbers…
Evaluating an algebraic expression: Whole numbers with two operations
A quick demo about plugging in given values for variables and calculating a number result.
03:52 duration 3 minutes 52 seconds
Finding slopes of lines parallel and…
Finding slopes of lines parallel and perpendicular to a line given in the form Ax + By = C
Shows how to convert Ax + By = C to y = mx + b then what and why the slopes for parallell and perpendicular lintes are what they are.
00:39 duration 39 seconds
Writing an inequality for a real-world situation
A short video about translating a real situation into a mathematical inequality statement.
04:13 duration 4 minutes 13 seconds
Signed fraction addition or subtraction: Basic
Three quick demos, two subtractions and an addition which need adjusting first to create a common denominator
02:54 duration 2 minutes 54 seconds
Order of operations with fractions: Problem type 1
A description of the process for dividing frations.
05:34 duration 5 minutes 34 seconds
Addition or subtraction of fractions with…
Addition or subtraction of fractions with different denominators
How to factor the denominators to find the necessary factors for the least ccommon denominator, then adjust the fractions to be equal versions with that LCD and combine the numerators for the answer.