Algebra 1- Index
Placement Test
Unit 1

Signed Numbers

Unit 2

Powers, Square Roots, and Algebraic Expressions

Unit 3

Solving Equations

Unit 1: Signed Numbers

  • Introduction to Signed Numbers14:05
  • 8Meaning of Algebra (1 of 2)02:24
  • 8Meaning of Algebra (2 of 2)04:57
  • 10The Number Line06:26
  • 11Adding Signed Numbers with the Same Sign06:23
  • 12-13Adding Signed Numbers with Different Signs03:23
  • 14-15Adding Several Positive and Negative Signed Numbers03:24
  • 17Subtracting Signed Numbers03:09
  • 19Problem-Solving with Adding and Subtracting Signed Numbers01:10
  • 20-21Multiplying Signed Numbers02:59
  • 24-25Dividing Signed Numbers01:45
  • 26Applications for Signed Numbers (1 of 2)02:04
  • 26Applications for Signed Numbers (2 of 2)00:55
Algebra I-Adding Signed Numbers with the Same Sign

Adding signed numbers with the same sign: demonstrated on a milling machine with digital readout. Scuba diving: if a depth gauge reads 16 feet below sea level and you descend 35’, what will the depth gauge read?