Amazing Mathematics Compound Interest Maze Answer Key

This page lists recommended resources for teaching number topics at Key Stage 3/4.

Huge thanks to all individuals and organisations who share teaching resources.

Negative Numbers

Adding Shifts - SMILE
Always Sometimes Never - mathspad.co.uk
Directed Numbers Puzzle - mathspad.co.uk
Adding and Subtracting Using Directed Numbers I (answers) - @taylorda01
Adding and Subtracting Using Directed Numbers II (answers) - @taylorda01
Directed number practice 1 - Don Steward
Directed number practice 2 - Don Steward
Directed number arithmogons - Don Steward
Use of directed number (include algebra) - typed up by @DeeVijayan
Multiplying directed numbers - Don Steward
Multiplying negative numbers minimally different questions - @FortyNineCubed
Dividing negative numbers minimally different questions - @FortyNineCubed
Multiplying & Dividing Directed Numbers (answers & supporting material) - @taylorda01
Directed Number Gaps - Median Don Steward
Radiating directed numbers - Median Don Steward
Products of directed numbers (includes algebra) - typed up by @littlemissdwyer
Quotients of directed numbers (include algebra) - typed up by @DeeVijayan
Directed number review - Don Steward
Ever Wondered Why? - JustMaths
Missing Numbers - Teachit Maths
Seven Circles (multiplying negatives) - Scholastic Teaching Resources
Directed number magic squares - Don Steward
Magic Squares - mathspad.co.uk
Puzzle square - Median Don Steward
Blog post: Multiplying Negatives

Magic Squares - MathsPad

Place Value

Interactive Place Value Tool - MathsPad
Place Value Booklet, Slides and Activities - MathsPad
Calculator Flags - SMILE
Ordering integers and decimals chapter - MathsPad
Ordering positive and negative integers lesson - Boss Maths
Ordering numbers (answers & supporting materials) - @taylorda01
Place value chapter & activities - CIMT
Place value - decimals - White Rose Maths via TES
Place value resources - Snappy Maths
Place value tasks with a calculator - via STEM Centre
Nearest to - Don Steward
Powers of 10 Flags - SMILE
Multiplying by powers of 10 - @taylorda01
Dividing by powers of 10 - @taylorda01
Multiply and Divide by Powers of 10 - Teachit Maths
Multiply and Divide by Powers of 10 - Great Maths Teaching Ideas
Multiplying and Dividing by Powers of 10 - ptarmigan on TES
Related Calculations - Teachit Maths
Related Calculations - MathsPad
More place value resources from MathsPad (£)

Addition and Subtraction

Mental methods of calculation - Don Steward
Basic Number Tasks - Don Steward
Arithmetic practice - Don Steward
Missing numbers - Teacher resources online
Subtractions - Don Steward
Crytarithms - Don Steward
Number puzzles - Don Steward
Squares inside a rectangle - Don Steward
Missing digits add and subtract - Don Steward
Making a Difference - nrich
Add to 200 - nrich
Using Standard Algorithms for Number Operations - Mathematics Assessment Project

Multiplication and Division

Multiplication Makes Sense - SMILE via STEM Centre
Multiplication Flags - SMILE
Arithmetic practice - Don Steward
Thinking of Division as Multiplication - mathsmda.weebly.com
7 Times Table Reasoning Activities - krisgreg30 on TES
Multiplication, long by a digit - Median Don Steward
Multiplication Textbook 1 and Textbook 2 - Corbett Maths
Multiplying positive integers - lessons from Boss Maths
Multiplication methods (teacher resource) - Teacher Resources Online
Long multiplication teaching - Don Steward
Division notes and questions - Teacher Resources Online
Crossums - Teacher Resources Online
1 to 9 multiplied - Median Don Steward
Multiplication problems - Median Don Steward
Multiplication find the gaps - Median Don Steward
Division - Median Don Steward
Division - Don Steward
Multiplication of big numbers - Don Steward
My blog post about Divisibility Rules
Don Steward's post about long multiplication teaching

Order of Operations (see my topics in depth pack)

Order of operations intelligent practice - variationtheory.com
Order of operating - Median Don Steward
BiDMAS (First Steps) - Maths4Everyone
Order of operations lesson - Boss Maths
Order of Operations (answers) - @taylorda01
Order of Operations II - @taylorda01
Crossnumber - Teachit Maths
Whodunnit (with solution) - JustMaths
Order of operations resources (download at end of blog post) - Dan Draper
Missing Operators - Teachit Maths
BIDMAS spiders - alutwyche on TES
BIDMAS lock game - Dan Walker on TES
Games - BIDMAS dice and BIDMAS four in a row - Teachit Maths
Order of calculating - Median Don Steward
Maths Target starter - Flash Maths
Make 100 - nrich

Operation Countdown by @taylorda01

Decimals

Place value - decimals - White Rose Maths via TES
Place Value Booklet, Slides and Activities - MathsPad
Ordering decimals lesson - Boss Maths
Addition and subtraction of decimals - White Rose Maths via TES
Arithmetic - Decimals + and - - CIMT
Decimal Search - SMILE
Arithmetic - Decimals x - CIMT
Arithmetic - Decimal Division - CIMT
Decimal puzzle path - Teachit Maths
Decimal addition - Median Don Steward
Adding and Subtracting Decimals (answers) - @taylorda01
Decimal multiply and divide Whodunnit - JustMaths
Applying the four operations to decimals - Boss Maths
Decimals Task Cards - GottaLuvItCreations on TES
Decimal flags - SMILE
Decimal multiplication and division activity - Median Don Steward
Decimal steps - Median Don Steward
Decimal addition, multiplication and division practice - Don Steward
Decimal Multiplication and Division Practice - Don Steward
Dividing decimals (answers) - @taylorda01
Multiplying decimals (answers) - @taylorda01
Decimal routes - SMILE
3.142 variations - Median Don Steward
Six digits - Median Don Steward
Decimal calculations: Right or Wrong? - Peter Mattock on TES
Decimal sequences - Median Don Steward
Decimal Scales - Median Don Steward
Decimals practice makes perfect - Don Steward
Related Calculations - Teachit Maths
Related Calculations - MathsPad

Rounding

Place Value Booklet, Slides and Activities - MathsPad
Rounding numbers code breaker - mathspad.co.uk
Rounding lessons - Boss Maths
Variationtheory.com rounding tasks
Simple rounding worksheets including number lines - Math Salamanders
Rounding Pixel Puzzle 1 and Puzzle 2 - MissBrookesMaths (corrections here)
Rounding slides and Rounding to 2dp Question Trade - Teachit Maths
Rounding spiders - alutwyche on TES
Rounding to powers of 10 - Don Steward
Rounding to different amounts - Don Steward
Significant Figures - Ashton Coward
Truncation (post and resources) - Jemma Sherwood
How secure is your rounding? - TeachIt Maths
Bounds and Error Intervals (new GCSE) - @dooranran on TES
N15 Bounds - Edexcel
For more bounds resources see my shape resources library and my bounds blog post

@OxfordEdMaths

Estimation

Estimation by rounding lesson - cparkinson3 on TES
Estimating answers lesson - Boss Maths
Estimation worksheet
Estimation (Activity 6.4) - CIMT
Estimation collect a joke - Dan Walker on TES
Calculations - MissBrookesMaths
Calculations - Decimals - MissBrookesMaths
Approximation - cazoommathsworksheets.com
Rounding and estimation treasure hunt - rogradymaths.blogspot.co.uk
Approximation and Estimation Check In - OCR
Estimating powers and roots - Boss Maths
Estimating Sums - Median Don Steward

Calculator Skills

NNS Calculator Activities - STEM Centre
Calculator story - frickard on TES
Using a calculator: odd one out - MathsPad
Calculator words - Median Don Steward
Interpreting a calculator relay - MissBrookesMaths
Use of calculator treasure hunt - nottcl on TES
Equivalent Representations - The Calculator Guide
Using a calculator GCSE revision - Maths4Everyone on TES
Calculator Crunch resources - MEI
The Calculator Guide (YouTube Channel)

Fractions

Fraction stories - Chris McGrane
Fraction shading 1, Fraction shading 2, Fraction shading 3 - SMILE
Fraction shading - Don Steward
Fractions of shapes (answers) - @taylorda01
The big book of fractions - krisgreg30 on TES
Mastery Fractions Worksheets - tomgale001 on TES
Fractions matching activity - WRMathsHub on TES
True or false cards: fraction misconceptions - Mark Horley
Equivalent Fractions - MathsPad
Match Three: Equivalent Fractions - MathsPad
Visual improper fractions - visualfractions.com
Improper Fractions Task - Chris McGrane
Code breakers: Simplifying, Improper & Fractions of amounts - Teachit Maths
Fractions activities - Math with Pizzazz
Cancelling Fractions - Don Steward
Improper fractions - Maths4Everyone on TES
Fractions inc algebra - Equivalent, Simplifying - MissBrookesMaths
Forward and back fractions - Don Steward

Hinge question from Dylan William

Fractions and their rules lesson - cparkinson3 on TES
Adding fractions puzzle - MathsPad
Fractions - CIMT
Adding & Subtraction Fractions Lesson - @TickTockMaths
Adding and subtracting fractions (answers) - @taylorda01
Fraction triangles - Median Don Steward
Fraction arithmetic practice - Don Steward
Fraction sums collect a joke - Dan Walker on TES
Multiplying fractions (answers) - @taylorda01
Fraction Multiplication and Division with Substitution - typed up by @stevebishop100
Dividing fractions (answers) - @taylorda01
Fraction division - Don Steward
Fractions of - Median Don Steward
Fractions of amounts (answers) - @taylorda01
Fraction magic squares - Median Don Steward
Fractions maze and spot the mistake - Dan Walker on TES
Fraction extension activities - glencoe.com
Fractions inc algebra - Add and Subtract - MissBrookesMaths
Fractions relay (with score sheet) - MathsBox
Exam style questions - fractions operations - Maths4Everyone

Whole One Search - MisterMConnolly on TES
Fractions to percentages - Don Steward
Ordering FDP - goteachmaths.co.uk
Fractions, Decimals, Percentages and Links to Division - Chris McGrane
Converting Percentages to Fractions and Decimals (answers) - @taylorda01
Converting Decimals to Percentages and Fractions (answers) - @taylorda01
Converting Fractions to Percentages and Decimals (answers) - @taylorda01
Fractions to percentages - Dan Walker/ Median Don Steward
Fractions Decimals and Percentages Matching - MathsPad
FDP Cluedo - danwalker on TES
Dissecting a square - Standards Unit
Reciprocals Odd One Out - MathsPad
Converting terminating decimals into fractions and vice versa - Boss Maths

Percentages

From @MathsMastery

Various percentages tasks - variationtheory.com
Key Stage 3 percentages activities from Teachit Maths
Percentages practice - Don Steward
Percentages Grid - MathsPad
Calculate Percentages (answers and supporting material) - @taylorda01
One amount as a percentage of another (answers) - @taylorda01
One amount as a percentage of another II (answers) - @taylorda01
Percentages of money - SMILE
Marks to percentages - SMILE
From one percentage to another - Don Steward
Percentages of amounts - Gareth Evans
Percentage Change Etude - Colin Foster
Percentage of an amount - ever wondered why? - JustMaths
Percentage Change Chain - Michael Sharman on TES
Percentage Increase Maze - weteachmaths on TES
Scaffolded multipliers sheet - by me!
Percentage increase and decrease using a multiplier - jenitta on TES
Mixed percentage multipliers - variationtheory.com
Increase/decrease by a percentage (answers) - @taylorda01
Reverse percentages (answers) - @taylorda01
Percentages Inquiry - Inquiry Maths
Forward and reverse percentages worksheet - awilki9 on TES
Reverse Percentages - Thomas Alley
Percentages Revision - rogradymaths.blogspot.co.uk
% using multipliers - Median Don Steward
Percentages Check In - OCR
Percentage of amount maze - Dan Walker on TES
Percentages crossnumber - armathematics on TES
Percentages GCSE revision - Maths4Everyone on TES
Mixed percentages worksheet - by me!
Mixed percentage problems lock game - Dan Walker on TES
Percentages Full Coverage GCSE Questions - compiled by Dr Frost

Interest and repeated percentage change below.

Fractions to percentages by Don Steward

Growth and Decay and Interest

Repeated Percentage Change With Multipliers - Ashton Coward
Scaffolded compound interest sheet - by me!
Compound percentages activities from Teachit Maths
Exponential Growth and Decay
Growth and decay problems - Boss Maths
Exam questions - collated by JustMaths
Check-in test - OCR
Interest assorted problems - Boss Maths
Bridging Unit growth and decay - AQA

Ratio and Proportion

Simplifying ratios (answers) - @taylorda01
Pairs - Median Don Steward
Sharing with ratios - bar modelling lesson - cparkinson3 on TES
Ratio minimally different questions - one part given - @FortyNineCubed
Ratio minimally different questions - difference given - @FortyNineCubed
Simplifying ratio bingo/match cards, student sheet, notes, slides - Nuffield Foundation
Simplifying ratio - Maths4Everyone on TES
Pixel Picture: Equivalent Ratios - richardtock on TES
Ratio code breaker - Teachit Maths
Write ratio in the form n:1 (answers) - @taylorda01
Write ratio in the form 1:n (answers) - @taylorda01
Ratio bar model - ColeyAL via TES
Sharing in a given ratio - @taylorda01
Superhero Ratio Sharing - @dooranran on TES
Sharing in a ratio - fill in the gaps - Craig Barton
Using ratio - TeachIt Maths
Orangier - Median Don Steward
The language of ratio - Teachit Maths
Ratio Problems with Surds - Access Maths
Angles and ratio 1 - steele1989 on TES
Angles and ratio 2 - steele1989 on TES
Ratio and Shape - GoTeachMaths
Angle Facts with Ratio - GoTeachMaths
Calculations with Ratio Check In - OCR
What was the question? - Andy Lutwyche on TES
Ratio GCSE revision - Maths4Everyone on TES
Ratio problem solving - TeachIt Maths
Ratio extension problems - Extension Mathematics
Harder ratio questions - Median Don Steward
Higher GCSE Ratio Approaches - by me!
Angles and ratio - Sam Blatherwick
Exam Questions - AO2 and AO3 - Problem Solving Ratio Questions - lkilgariff on TES
Ratio Full Coverage GCSE Questions - compiled by Dr Frost
GCSE Ratio and Proportion Questions - Don Steward
GCSE 9-1 Exam Question Practice (Ratio) - Maths4Everyone
See my blog post about teaching ratio for methods and approaches
For ratio map scale, see measures resources

Making shortbread - Teachit Maths
Proportion bursts - Teachit Maths
Proportional Reasoning Resources - NCETM
Boxes - Median Don Steward
Unitary method: proportional reasoning - TeachIt Maths
Direct Proportion Graphs - MathsByFintan on TES
Proportion exercises - Corbett Maths
CSMS Proportion Questions - Don Steward
Direct Proportion - mathshelper.co.uk
Inverse Proportion - mathshelper.co.uk
KS3 Ratio and Proportion textbook - CIMT
Comparing Costs - Maths4Everyone
Proportion KS2 Questions - Maths4Everyone
Best Buys - Median Don Steward
Best Buy GCSE Style Questions - Corbett Maths
What's the question? - Median Don Steward
Proportion booklet (£) - MathsPad

Solving problems involving direct proportion - BossMaths
Constructing and interpreting equations that describe direct and inverse proportion - Boss Maths
Direct proportion resources - GoTeachMaths
Physics in Proportion - Median Don Steward
Differentiated Direct and Inverse Proportion Questions - blod19 on TES
Inverse proportion slides and activities - martin8baker on TES
Proportion matching cards - source unknown (apologies to author)
Direct or inverse proportion? - Teachit Maths
Direct and inverse proportion - Median Don Steward
Proportion worksheets: direct / inverse / general - mathshelper.co.uk
Recognising and interpreting graphs that illustrate direct and inverse proportion - Boss Maths
Breakfast shift - real-life inverse proportion lesson -Nyima Drayang on TES
Direct and Inverse Proportion Full Coverage GCSE Questions - compiled by Dr Frost
Direct and Inverse Proportion Exam Questions - Maths4Everyone on TES

Investigating Recurring and Terminating Decimals - by me
Converting recurring decimals into fractions and vice versa - Boss Maths
Repeating Decimals - Maths Assessment Project
Recurring Decimals Four in a Row - Teachit Maths
Recurring decimals activity and method - The Chalk Face
Matching recurring fractions and decimals - Teachit Maths
Recurring Decimals - Median Don Steward
Recurring decimal sums - Access Maths
Converting Recurring Decimals into Fractions (GCSE Revision) - Maths4Everyone on TES
Recurring Decimals GCSE Questions - Maths4Everyone

Indices (see topics in depth pack)

Index notation - four activities - by me!
Squares, cubes and roots (answers) - @taylorda01
Square numbers - andytodd on TES
Estimating Square Roots - Mr Thompson on TES
Cube number introduction - Don Steward
Powers of 10 - SMILE
Notation, multiplication and indices - typed up by @pbrucemaths
Multiplying indices (getting started) - Maths4Everyone on TES
Indices (answers) - @taylorda01
Simplifying Indices Code Breaker - Teachit Maths
Index Laws dominoes - Teachit Maths
Index Laws codebreaker - MissBrookesMaths
Using Indices - Standards Unit
Powers of y eliminator - Teachit Maths
Properties of Exponents - Mathematics Assessment Project
Raising a power to a power - Kyle Gillies via Starting Point Maths
Mental Powers Code Breaker - Teachit Maths
Powers, Roots and Index Laws - danwalker on TES
Index laws problems - Brilliant.org
Index laws open middle task - Open Middle
Powers and Roots GCSE revision - Maths4Everyone on TES
Changing the base code breaker - Justgoodmaths on TES
Mental Mathemagician - Yummymath
Fractional indices (answers) - @taylorda01
Negative powers - equivalent representations - Chris McGrane
Negative indices (answers) - @taylorda01
Indices problems - Access Maths
Indices problems 2 - Access Maths
Fractional and negative indices (answers) - @taylorda01
Fractional Indices Always/Sometimes/Never - MathsPad
Treasure hunts: simple index laws and negative & fractional indices - Teachit Maths
Ever wondered why? - JustMaths
Square roots and cube roots - Median Don Steward
Mega hard powers questions - Don Steward
Indices Extension - Mr Hill
Repeated addition indices problems - Ashton Coward
Indices A level worksheets (solutions) - Solomon
GCSE 9-1 Exam Question Practice (Powers and Roots) - Maths4Everyone on TES
Indices Full Coverage GCSE Questions - compiled by Dr Frost