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Compound interest worksheet (with solutions)

Compound interest worksheet (with solutions)

Subject: Mathematics

Age range: 11-14

Resource type: Worksheet/Activity

Last updated

2 August 2026

pdf, 72.57 KB
pdf, 72.57 KB

A worksheet on compound interest. Detailed solutions are included.

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A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

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Percentages Worksheets Bundle Simple & Compound Interest, Percent Change, FDP

A collection of 8 worksheets on percentages. The following are included: * Percentages, fractions and decimals * Expressing one quantity as a percentage of another * Percentage Increase-Decrease * Percentage change * Simple interest * Compound interest * Reverse percentage * Percentage (over 100) of a number Detailed solutions are included. A comprehensive percentages maths bundle featuring 8 complete worksheet packs with fully worked step-by-step solutions. Covers fraction-decimal-percentage (FDP) conversions, expressing one quantity as a percentage of another, simple and compound interest, multipliers, and percentage change. Perfect for KS3 and KS4 revision, homework, cover lessons, and GCSE preparation. ________________________________________ Looking for a comprehensive, ready-to-print resource to help your students master percentages? This Percentages Complete Worksheets Bundle provides everything you need to teach, practice, and review essential percentage concepts. From basic FDP fluency to multi-step financial maths problems, this pack is designed to build confidence for Key Stage 3 (KS3), Key Stage 4 (KS4), and GCSE maths students. Every worksheet in this bundle comes with a fully worked-out, step-by-step solution sheet—making it incredibly easy to grade, ideal for student self-correction, and perfect to leave as a hassle-free cover lesson! ________________________________________ **What Is Included in This Pack?** This high-utility bundle features structured worksheet sets covering 6 major topics: • **Fractions, Decimals, & Percentages (FDP):** Fluency practice for converting between fractions, decimals, and percentages in both directions. • **Expressing Quantities as Percentages:** Real-world practice calculating one quantity as a percentage of another (e.g., £12 out of £60 or 40g out of 160g). • **Percentage Increase & Decrease** (The Multiplier Method): Guided skill-building to find decimal multipliers for percentage changes (e.g., an 18.6% increase or a 7.4% decrease). • **Percentage Change:** Step-by-step calculations to find the exact percentage of increase or decrease between original and new values. • **Simple Interest:** Non-calculator and calculator-active problems calculating yearly and monthly interest on loans and investments. • **Compound Interest:** Advanced multi-step problems calculating total investment value, interest earned over multiple years, and finding the original investment amount (reverse percentages style). ________________________________________ **Key Features & Benefits** • Fully Worked Solutions: No simple numerical answer keys here! Students can see the exact multiplication, reduction, and formula steps used to reach the final answer. • Zero Prep Required: Just print and go! Excellent for weekly homework, independent classwork, or revision booklets. • Scaffolded Learning: Problems progress naturally from simple, non-calculator arithmetic to multi-step calculator problems. • Fully Aligned to UK Currency: Features £ currency and metric units, making it seamless for UK classrooms. ________________________________________ **Curriculum Alignment** • Key Stages: KS3 & KS4 (Years 7–11) • GCSE Maths Assessment Objectives (Foundation & Higher): o R9: Define percentage as ‘number of parts per hundred’; interpret percentages and percentage changes as a fraction or a decimal, and use multipliers. o R11: Understand and use compound interest and simple interest. ________________________________________

£6.90
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GCSE IGCSE Number Worksheets Bundle - Fractions Percentages Indices Bounds +

A collection of 20 worksheets on various number topics from the GCSE/IGCSE syllabus. The following topics are included: * Rounding * Bounds * Calculator use * Percentages, fractions and decimals * Increasing or decreasing an amount by a percentage * Percentage of a quantity * The rules of indices * Factors, Multiples and Primes * Square and cube roots * Mixed operations between fractions, mixed numbers and whole numbers * HCF and LCM using prime factorisation * Recurring decimals * Simple interest * Compound interest * Operations With Positive and Negative Numbers * Order of operations * Standard form * Multiplying and dividing by powers of 10 * Adding and subtracting positive and negative numbers * Multiplying and dividing positive and negative numbers Detailed solutions are provided for each worksheet. Master core GCSE and IGCSE mathematics with this comprehensive, no-prep 20-worksheet Number resource pack! Packed with exam-style questions, complete step-by-step worked solutions, and a wide variety of topics, this collection is perfect for KS3 and KS4 revision, homework, and cover lessons. Covers fractions, percentages, index laws, upper/lower bounds, rounding, and calculator operations. ________________________________________ Looking for rigorous, no-prep math resources to help your students master essential Number topics? This highly comprehensive 20-worksheet pack is designed to fully align with UK GCSE and IGCSE math specifications. Whether you need structured cover lessons, targeted homework tasks, daily classroom practice, or an all-in-one exam revision booklet, this resource has you covered! Every single worksheet comes paired with complete step-by-step worked solutions, making grading an absolute breeze and allowing students to self-assess or peer-mark effectively. ________________________________________ **What Topics Are Covered?** 1. **Percentages & Conversions** • Converting seamlessly between fractions, decimals, and percentages. • Calculating the exact percentage of a given quantity. • Increasing and decreasing an amount by a percentage. 2. **Fractions & Core Arithmetic Operations** • Simplifying and writing fractions in their simplest form. • Converting fractions to exact percentages and decimals. 3. **The Rules of Indices (Laws of Indices)** • Multiplying and dividing terms using basic, fraction, and negative index laws. • Simplifying complex algebraic terms with brackets and single variables. • Working with dual-variable expressions involving negative bases. 4. **Upper & Lower Bounds (Error Intervals)** • Calculating upper and lower bounds for multi-step formulas. • Applying rounding bounds to fractional and multi-variable equations. • Solving limits for equations containing radicals and square roots. 5. **Foundational Number Skills** • Rounding integers to the nearest 10, 100, or 1000. • Rounding decimals to the nearest whole number or specific decimal places. • Listing factors, multiples, prime numbers, and prime factors. • Multi-step calculator practice using complex fractional expressions, fractions, and roots. ________________________________________ **Why Teachers Choose This Resource Pack:** • Zero Prep Needed: Just download, print, and you are ready to go! • Step-by-Step Solutions: Complete answer keys show exactly how to solve each problem, not just the final numerical answer. • Scaffolded Layout: Moves smoothly from basic numeric concepts up to advanced higher tier error bounds. • Universal, Clean Design: Styled neatly without distracting clutter, maximizing student focus during revision. ________________________________________ **Curriculum Alignment:** • Key Stage 4 (KS4): Perfect for Year 10 and Year 11 preparing for Higher and Foundation tiers. • Key Stage 3 (KS3): Great for Year 8 and Year 9 higher-tier extension or foundational work. • Exam Boards: Fully supports objectives for Edexcel, AQA, OCR GCSE, and Cambridge CIE / Oxford AQA IGCSE.

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GCSE Maths-Number and Algebra Revision Pack

A bundle of 20 worksheets (with detailed solutions) on Number and Algebra topics appropriate for GCSE students. Each worksheet contains questions for students of various abilities. The topics covered by these worksheets include: * Operations with positive and negative numbers * Recurring decimals * Surds * Sequences * Percentage of a quantity * Reverse percentage * Compound interest * Simple interest * Percentage change * Percentage Increase Decrease * Simplifying expressions by collecting like terms * Expanding single brackets * Expanding double brackets * Factorising simple expressions * Factorising quadratic expressions * Solving linear equations * Solving quadratic equations * Operations with algebraic fractions * Linear inequalities * Quadratic inequalities The pack is ideal for use in revision sessions or for individual study. The solutions provided are very clear and explanatory.

£18.90
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GCSE Maths-Number Revision Pack 2

A bundle of 10 worksheets (with detailed solutions) on Number topics appropriate for GCSE students. Each worksheet contains questions for students of various abilities. The topics covered by these worksheets include: * Operations with positive and negative numbers * Recurring decimals * Surds * Sequences * Percentage of a quantity * Reverse percentage * Compound interest * Simple interest * Percentage change * Percentage Increase Decrease The pack is ideal for use in revision sessions or for individual study. The solutions provided are very clear and explanatory.

£8.90
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GCSE 9-1 Percentages Bundle

A collection of 7 worksheets on percentages based on the GCSE 9-1 specification. The following are included: * Expressing one quantity as a percentage of another (non-calculator) * Expressing one quantity as a percentage of another (calculator) * Percentages, fractions and decimals: conversions between the three of them and word problems * Percentage of a quantity (non-calculator): finding the percentage of a quantity without the use of a calculator * Increasing or decreasing an amount by a percentage (non-calculator): increasing or decreasing an amount by a given percentage without using a calculator * Reverse percentage * Compound interest Detailed solutions are included.

£5.90
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Percentages, reverse percentage and compound interest Bundle

Three worksheets on the following topics: Percentages, fractions and decimals, reverse percentage and compound interest. Solutions are included.

£2.90

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