Grade 8

79 Units, 209 Skills

Geometry - Angles and Transformations - Practice

Unit 1

Probability and Statistics - Mean, Median, and Mode - Practice

Unit 2

Triangle Area - Practice

Unit 3

Fraction Multiplication - Practice

Unit 4

Exponents - Division - Intro

Unit 5

Speed, Distance, and Time - Practice

Unit 6

Time - Elapsed Time - Advanced

Unit 7

Measurement - Units Practice - Metric

Unit 8

Exponents - Advanced

Unit 9

Fractions, Decimals, and Percents

Unit 10

Order of Operations - Advanced

Unit 11

Area and Perimeter Complex Shapes

Unit 12

Factoring and Primes - Advanced

Unit 13

Scientific Notation - Practice

Unit 14

Exponents - Multiplication and Division - Practice

Unit 15

Algebra Basic Concepts - Practice

Unit 16

Geometry - Shape Classification (3D) - Practice

Unit 17

Cartesian Grid Transformations - Intro

Unit 18

Triangle Area - Advanced

Unit 19

Geometry - Surface Area of 3D Shapes - Intro

Unit 20

Geometry - Volume of 3D Shapes - Intro

Unit 21

Rates and Ratios - Advanced

Unit 22

Probability and Counting - Single Event - Advanced

Unit 23

Patterning - Number Patterns Practice

Unit 24

Time - Elapsed Time, Negative - Advanced

Unit 25

Negative Integers - Intro

Unit 26

Division 3 by 2 Digit

Unit 27

Area and Perimeter Logic - Intro

Unit 28

Probability and Statistics - Counting and Probability Foundations

Unit 29

Factoring and Greatest Common Factor - Practice

Unit 30

Fraction Division - Intro

Unit 31

Geometry - Circle Area and Circumference - Practice

Unit 32

Geometry - Isosceles and Equilateral Triangles

Unit 33

Percentages - Practice

Unit 34

Digits and Divisibility - Practice

Unit 35

Cartesian Grid Geometry Logic - Intro

Unit 36

Pythagoras - Foundations

Unit 37

Decimal Multiplication - Advanced

Unit 38

Geometry - Intersecting, Parallel, and Perpendicular Lines

Unit 39

Percents and Simple Interest - Intro

Unit 40

Factoring and Lowest Common Multiple - Practice

Unit 41

Fraction Addition and Subtraction - Advanced

Unit 42

Squares and Square Roots - Practice

Unit 43

Decimal Division - Advanced

Unit 44

Fraction Addition and Subtraction, Mixed - Practice

Unit 45

Factoring, Multiplication, Division, Fractions - Intro

Unit 46

Exponents - Multiplication and Division - Advanced

Unit 47

Geometry - Circle Partial Area and Circumference - Intro

Unit 48

Patterning - Number Patterns Advanced

Unit 49

Measurement - Units Advanced - Metric

Unit 50

Geometry - Surface Area of 3D Shapes - Practice

Unit 51

Exponents - Power Law - Intro

Unit 52

Factoring and Greatest Common Factor - Advanced

Unit 53

Algebra Manipulating Variables - Intro

Unit 54

Geometry - Cylinders - Intro

Unit 55

Probability and Statistics - Counting and Probability Practice

Unit 56

Percentages - Advanced

Unit 57

Measurement - Unit Conversion Intro - Metric

Unit 58

Speed, Distance, and Time - Advanced

Unit 59

Ratios of Lengths - Intro

Unit 60

Cartesian Grid Geometry Logic - Practice

Unit 61

Percents and Simple Interest - Practice

Unit 62

Squares and Square Roots - Advanced

Unit 63

Area and Perimeter Logic - Practice

Unit 64

Slope - Intro

Unit 65

Algebra Basic Concepts - Advanced

Unit 66

Factoring and Lowest Common Multiple - Advanced

Unit 67

Probability and Statistics - Mean, Median, and Mode - Advanced

Unit 68

Geometry - Volume Logic with 3D Shapes - Intro

Unit 69

Scientific Notation - Multiplication and Division - Intro

Unit 70

Pythagoras - Intro

Unit 71

Negative Integers - Practice

Unit 72

Speed, Distance, and Time Logic Challenges - Intro

Unit 73

Factoring, Multiplication, Division, Fractions - Practice

Unit 74

Pythagorean Triples - Intro

Unit 75

Cartesian Grid Distance - Intro

Unit 76

Probability and Statistics - Factorial Form Intro

Unit 77

Exponents - Power Law - Practice

Unit 78

Pythagorean Theorem with Decimals - Intro

Unit 79

Percents and Simple Interest - Intro

Unit 40

This math unit begins with an exploration of simple interest, where students first learn to calculate interest using principal, rate, and time. This skill is expanded upon by solving for different variables such as principal and rate based on given values of interest and other factors. As the unit progresses, students also learn to determine the time required to earn a specified amount of interest. These initial topics set a strong foundation in understanding how interest accumulates in financial contexts. Later, the unit shifts focus to the growth and reduction of money through percentage calculations. Students practice calculating the final amount of money after applying percentage increases and decreases in specific multiples (10% and 5%), considering various financial scenarios including tips, interest growth, taxes, and discounts. This transition from simple interest calculations to broader percentage manipulations allows students to apply their mathematical understanding in diverse and practical financial situations. This progression enhances their capability to handle real-life financial tasks efficiently.more

Skills you will learn include:

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Learning through Game Play

At Mobius we have lots of great (and free) resources to help you learn math. To keep kids engaged, there’s nothing better than a math-powered video game! Try out a Mobius game mapped to Percents and Simple Interest - Intro.

This math topic focuses on calculating the principal amount in various simple interest scenarios. It forms part of a larger unit on percents and simple interest. Each problem presents values for the interest earned, the annual interest rate, and the duration in years, asking students to determine the original principal amount invested. Multiple choice answers are provided for each question, helping learners practice and affirm their understanding of the relationship between principal, rate, time, and interest in financial mathematics.more

This math topic focuses on calculating simple interest given the principal, the annual interest rate, and the time period in years. The problems are designed to teach students how to apply the simple interest formula to find the amount of interest accrued over a defined period, using various scenarios with different principal amounts, interest rates, and time durations. Each problem offers multiple-choice answers, allowing learners to select the correct amount of interest calculated from the provided data. This is part of a broader unit on percents and simple interest.more

This math topic focuses on calculating the rate of simple interest given the principal amount, the total interest earned over a period, and the time. Through a series of problems, learners apply the simple interest formula to find the rate, enhancing their understanding of percentages and basic algebra. Each question presents different scenarios with varying principal amounts, interest, and time durations, and multiple choice answers for determining the rate percentage. This topic is part of a broader unit on percents and simple interest.more

This math topic focuses on calculating the principal amount in various simple interest problems, using given values for interest, rate, and time. It practices deriving the initial amount of money loaned or invested, based on the interest it earns over a specified period at a specified rate, enhancing skills in working with percentages and basic algebraic manipulations within the context of financial mathematics. Each question provides a financial scenario, and multiple-choice answers are offered to determine the principal amount.more

This math topic focuses on calculating the time required to earn a certain amount of simple interest, given the principal amount and the rate. The problems involve using the simple interest formula to determine the number of years needed based on different financial scenarios. Each question includes a specific principal value, interest amount, and interest rate, asking for the time duration in years. The skills practiced include applying the simple interest formula, understanding percentages, and performing basic algebraic manipulations.more

This math topic focuses on calculating the simple interest rate given the principal, amount of interest, and time. These problems are part of a broader unit on percents and simple interest. Each question presents unique values for the principal, interest, and time, and requires finding the corresponding interest rate. Students are given multiple choices for each problem to select the correct rate. This practice aims to enhance students' understanding in dealing with monetary concepts and applying mathematical skills to real-world situations like finance and investments.more

This math topic focuses on calculating the principal amount in various simple interest scenarios using given values for interest, rate, and time. It helps students practice the application of the simple interest formula to determine the initial amount of money invested or borrowed, reinforcing understanding of percentages and basic algebraic manipulation related to financial mathematics. Each problem is formatted with multiple-choice answers, enhancing problem-solving skills and proficiency in handling real-life financial calculations regarding interest and loans.more

This math topic focuses on practicing calculating the time required to achieve a certain amount of simple interest given the principal amount and the interest rate. It is part of a broader unit on percents and simple interest. Each problem provides a scenario involving a principal, a specific amount of interest to be obtained, and the interest rate, asking for the time in years to reach the given interest. The problems offer multiple-choice answers, allowing the learner to select the correct time period. This topic helps solidify understanding of the relationships between principal, rate, interest, and time in simple interest calculations.more

This math topic focuses on calculating the rate of simple interest given the principal, interest amount, and time period. The problems presented here involve computing the rate as a percentage based on varying scenarios in which the principal amount, the accumulated interest, and the duration of investment (in years) are specified. Participants are then required to select the correct rate percentage from multiple choices. This topic is an application of simple interest formula manipulation, enhancing skills in percentage calculation and algebraic manipulation related to financial mathematics.more

This topic focuses on calculating the duration of time required to accumulate a given amount of simple interest, given the principal amount and the rate of interest. The problems require the application of the formula for simple interest to deduce the time period. This involves manipulating the basic simple interest equation, \( I = P \times R \times T \), to solve for \( T \) (time), where \( I \) is the interest earned, \( P \) is the principal amount, and \( R \) is the rate of interest expressed as a decimal. Each question presents different values for \( P \), \( I \), and \( R \), and the learners select the correct \( T \) from multiple choices.more

This math topic is focused on calculating simple interest using the basic formula combining principal, rate, and time. It is part of a broader unit on percents and simple interest. Students are given various scenarios where they must compute the interest earned based on different principals, interest rates, and time periods specified for each problem. The problems are presented with multiple-choice answers, enhancing the learners' ability to solve practical financial mathematics problems regarding simple interest.more

This math topic focuses on calculating simple interest using the principal, rate, and time. It covers the fundamental concept of simple interest within the broader unit of percentages and simple interest. The problems provided allow students to apply the formula for simple interest to different scenarios involving different values of principal, rates, and time periods. Answers are given in multiple-choice format, challenging students to perform calculations and select the correct option. This topic serves as a practical application of simple interest in real-life financial contexts.more

This math topic focuses on calculating the growth of money through simple interest, specifically concentrating on increments by 5% multiples. It involves finding the final amount when a principal sum has grown by 25% in interest. Each problem provides a starting principal amount (in dollars), and learners are required to calculate how much that amount increases when 25% interest is added. The topic is aimed at building fluency in understanding percent increase and its practical application in financial contexts like interest earnings.more

This math topic practices calculating the percent growth of money, focusing on examples where the interest added to the principal is in multiples of 5%. It covers how to determine the total amount of money after the addition of interest, reinforcing concepts of percentages and simple interest. Each problem involves finding the total after a specific percentage of interest is added to a given principal, developing a foundational understanding of how interest affects financial growth.more

This math topic focuses on calculating the percent growth of money, including principles and varying interest rates, specifically in 5% increments. The skills practiced involve determining the final amount of money after applying percentage increases as interest on different principal amounts. Each problem presents a principal sum and an interest rate, and the task is to compute the final increased sum, offering a practical application of elementary percent and interest calculations often seen in basic financial and economic contexts.more

This math topic focuses on calculating the percent growth of money, specifically with problems that involve adding a 20% interest rate to various principal amounts. It teaches students how to compute the final amount of money after it has increased by a given percentage, facilitating understanding of percentage growth calculations in the context of interest and principal sums. The exercises are structured as multiple-choice questions, helping students apply their knowledge to real-world financial scenarios involving simple interest calculations.more

This topic practices calculating the final amount of money given an initial principle and a certain percentage of interest. Multiple problems are presented where interest rates, based in 10% increments, are added to a specified principle amount. The learner is to determine how the principle amount changes by these percentages, such as 60%, 90%, and up to 100%. Each problem provides multiple-choice answers.more

This math topic focuses on the calculation of the final amount of money after applying a percentage-based growth, which involves understanding and applying the concepts of percentages and simple interest. Questions require calculating total amounts including interest, using various principal amounts and interest rates. Interest rates used are simple, straightforward multiples of 10%. The problems are designed to assess and reinforce the learner's ability to handle basic interest calculations and percentage growth, foundational skills in managing and understanding growth in financial contexts.more

This topic focuses on understanding the components of the simple interest formula (I = PRT), where "I" stands for Interest, "P" represents the Principal, "R" is the Rate, and "T" denotes Time. It aims to clarify the meanings of these variables within the context of calculating simple interest, a fundamental concept in financial mathematics related to percents and interest calculations. The questions in this topic challenge learners to identify what each symbol in the formula represents, ensuring learners comprehend the basic structure and application of simple interest.more

This math topic focuses on the manipulation of the simple interest formula \( I = PRT \) to solve for different variables such as Time (T), Principal (P), and Rate (R). It provides exercises that require the learner to rearrange the formula, thereby enhancing their understanding of algebraic manipulation in the context of solving real-world financial problems related to simple interest. This practice is part of a larger unit on Percents and Simple Interest. Each problem poses a question regarding how to isolate a specific variable in the formula, with multiple-choice answers presenting different algebraic rearrangements.more