Course Overview
In this course, students investigate the base-ten number system by reading, writing, representing, comparing and rounding whole numbers and decimals; compute with whole numbers using one and two-digit numbers; develop strategies for performing mental computations; and generate equivalent forms of fractions and decimals to estimate, add, and subtract decimals and fractions with like denominators. Students count money and make change; examine prime and composite numbers; make simple measurement conversions of units; solve multi-step problems; and develop strategies to find perimeter, area, and volume. In geometry, students investigate, classify, and model plane figures and solids. They plot locations in the first quadrant of a coordinate system and make transformations of slides, flips, and turns; use words, tables, and graphs to analyze patterns and relationships to make predictions and solve problems; represent unknowns as variables in equations and inequalities and relate how change in one variable affects the value of a related variable. Students gather and organize data in tables, charts, and graphs and make predictions based on interpretations and appropriate display of data; use mode, median, and range to describe characteristics of data; conduct simple probability experiments and make predictions of possible outcomes ordering events as impossible, unlikely, equal, likely, and certain-to-happen; and make lists to display all possible combinations of different sets of items.

In addition, there are practice worksheets in many of the units that provide more practice on specific topics. To view a practice worksheet, click on the paper/pencil icon.  The worksheet will appear on top of the unit’s main page.  When finished, select File/Close to close the worksheet.  The main page of the unit will be visible once again. Students and teachers may work together to decide what worksheet(s) or part of a worksheet(s) can be used as a supplementary activity for the unit.  The answer key for each worksheet is provided for the instructor’s use. 

Required Materials for Math 180 Please print or save this document for future reference.

REVIEW OF DECIMALS AND INTEGERS

Unit Overview
The first six units of this course will provide a review of concepts that are most important for success in this course.  Having a sense of decimal operations will help in many ways including estimation and problem-solving. Since the study of mathematics builds on concepts previously learned, it is best to complete the units in the order that they are presented. 

Click on the links for explanations, and then apply the examples when working through the questions.

Decimal Point and Decimal Places (01:39)
Addition and Subtraction (02:27)
	Practice Worksheet: Add and Subtract Decimals
	Answer Key (Password Protected)
Multiplication and Division (04:17)
	Practice Worksheet: Multiply Decimals
	Answer Key (Password Protected)
	Practice Worksheet: Divide Decimals by Whole Numbers
	Answer Key (Password Protected)
	Practice Worksheet: Divide Decimals by Decimals
	Answer Key (Password Protected)
	Practice Worksheet: Mixed Review of Decimals
	Answer Key (Password Protected)
Integers (03:50)
Addition (06:37)
Subtracting Integers (09:34)
Multiplying Positive and Negative Integers (00:58)
	Practice Worksheet: Add and Subtract Integers
	Answer Key (Password Protected)
	Practice Worksheet: Multiply and Divide Integers
	Answer Key (Password Protected)
	Practice Worksheet: Mixed Review of Integers
	Answer Key (Password Protected)