BLC’s math program consists of eight units (topics) which cover both Essential Math and Pre-calculus Math. To prepare for your math assessment, please watch the following free video tutorials.
Unit One: Whole Numbers
Addition
Total video duration: 6:48 minutes
Adding three-digit numbers with regrouping | Addition and subtraction | Arithmetic | Khan Academy | 3:03 minutes
Adding with integer chips | Integers: Addition and subtraction | 7th grade | Khan Academy | 3:45 minutes
Subtraction
Total video duration: 11:54 minutes
Subtraction | Addition and subtraction within 20 | Early Math | Khan Academy | 4:02 minutes
Subtraction: Regrouping from zero | Addition and subtraction | Arithmetic | Khan Academy | 2:23 minutes
Subtracting with integer chips | Integers: Addition and subtraction | 7th grade | Khan Academy | 5:29 minutes
Multiplication
Total video duration: 20:05 minutes
Multiplying: Two-digit numbers | Multiplication and division | 4th grade | Khan Academy | 4:06 minutes
Multiplying multiple-digit numbers | Multiplication and division | Arithmetic | Khan Academy | 10:26
Multiplying positive and negative numbers | Pre-Algebra | Khan Academy | 5:33
Division
Total video duration: 11:38 minutes
Introduction to long division | Multiplication and division | Arithmetic | Khan Academy | 11:38 minutes
Unit Two: Order of Operations
Learn how to calculate math equations using order of operations (also called BEDMAS: Brackets, Exponents, Division, Multiplication, Addition, and Subtraction).
Total video duration: 12:41 minutes
Introduction to order of operations | Arithmetic properties | Pre-Algebra | Khan Academy | 9:39 minutes
Introduction to exponents | Pre-Algebra | Khan Academy | 3:02 minutes
Unit Three: Fractions
Learn how to calculate operations with fractions and how to calculate operations with mixed and improper fractions.
Total video duration: 22:52 minutes
Mixed numbers and improper fractions | Fractions | Pre-Algebra | Khan Academy | 9:14 minutes
Adding mixed numbers with like denominators | Fractions | Khan Academy | 2:52 minutes
Multiplying two fractions: an explanation | Fractions | Pre-Algebra | Khan Academy | 5:05 minutes
Understanding division of fractions | Fractions | Pre-Algebra | Khan Academy | 5:42 minutes
Unit Four: Decimals
Learn how to write a number as a decimal and as a fraction.
Total video duration: 27:17 minutes
Learn about place value with decimals | 4:04 minutes
Decimals: Writing them out in words | Decimals | Pre-Algebra | Khan Academy | 3:30 minutes
Comparing decimals example 1 | Decimals | 4th grade | Khan Academy | 3:28 minutes
Introduction to adding decimals tenths | Decimals | Khan Academy | 6:25 minutes
Example: How to multiply decimals | Decimals | Pre-Algebra | Khan Academy | 2:52 minutes
Dividing decimals completely | Arithmetic operations | 5th grade | Khan Academy | 6:43 minutes
Unit Five: Ratio, Proportion, and Percent
Learn how to compare two values using ratios, proportions, and percentages.
Total video duration: 16:27 minutes
Solving percent problems | Decimals | Pre-Algebra | Khan Academy | 6:16 minutes
Word Problem Solving Plan 1 | 10:11 minutes
Unit Six: Measurement
Learn how to convert units of measure (e.g., from metric to imperial, minutes to hours, grams to kilograms, etc.) Total video duration: 4:31 minutes
Converting pounds to ounces | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy | 1:34 minutes
Converting Fahrenheit to Celsius | Pre-Algebra | Khan Academy | 2:57 minutes
Unit Seven: Algebra Basics (Algebra Part 1 and Algebra Part 2)
Prepare for Grade 12 Essential Math and learn about algebraic variables, terms, factors, and coefficients.
Total video duration: 25:44 minutes
What are variables, expressions, and equations? | Introduction to algebra | Algebra I | Khan Academy | 6:55 minutes
How to simplify an expression by combining like terms and the distributive property | Khan Academy | 4:07 minutes
How to simplify a big expression by combining like terms | Algebra I | Khan Academy | 3:42 minutes
Scientific notation examples | Pre-Algebra | Khan Academy | 11:26 minutes
Unit Eight: Basics of Geometry
Learn how to calculate surface area using basic geometry.
Total video duration: 14:55 minutes
Cylinder volume and surface area | Perimeter, area, and volume | Geometry | Khan Academy | 8:07 minutes
Angle basics | Angles and intersecting lines | Geometry | Khan Academy | 6:48 minutes