Number

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Number

Number: Free Resources
Calculations with bounds GCSE preview: formula W = a ÷ (m − x) with Lower and Upper labels, asking students to find the lower bound of W – Mr Mathematics lesson pack.
Ages 14 - 16

Calculations with Bounds

Students learn how to perform calculations with the upper and lower bound of measurements.
Number: Interactive Lessons
Estimating Solutions by Rounding to a Significant Figure
Ages 14 - 16

Estimating Solutions by Rounding

Students learn how to estimate solutions by rounding numbers to a significant figure.
Number: Interactive Lessons
Upper and lower bounds example: height 174 cm to nearest centimetre, inequality for h — unique per image, not keyword-stuffed.
Ages 14 - 16

Limits of Accuracy

Students learn how to calculate the limits of accuracy of rounded numbers.
Number: Interactive Lessons
Rounding to the Nearest Power of Ten
Ages 14 - 16

Rounding to the Nearest Power of Ten

Students learn how to round a number to the nearest 10, 100 and 1000.
Number: Interactive Lessons
Rounding to Significant Figures
Ages 14 - 16

Rounding to Significant Figures

Students learn how to round a number to a significant figure using place value.
Number: Interactive Lessons
Rounding to a Decimal Place
Ages 14 - 16

Rounding to a Decimal Place

Students learn how to round a number to a given decimal place using place value.
Number: Interactive Lessons
Adding and Subtracting with Decimals
Ages 14 - 16

Adding and Subtracting with Decimals

Students learn how to add and subtract with decimal numbers using the place value table.
Number: Interactive Lessons
Multiplying and Dividing by Tens
Ages 14 - 16

Multiplying and Dividing by Tens

How to use the place value to multiply and divide by 10, 100 and 1000.
Number: Interactive Lessons
Ordering Decimal Numbers
Ages 14 - 16

Ordering Decimal Numbers

Students learn how to arrange decimal numbers in ascending order.
Number: Interactive Lessons
Long Multiplication
Ages 14 - 16

Long Multiplication

Students learn how to perform long multiplication using ‘The Chinese Method’.
Number: Interactive Lessons
Adding Fractions with Different Denominators
Ages 14 - 16

Adding Fractions with Different Denominators

Students learn how to add fractions with different denominators.
Number: Interactive Lessons
Dividing Fractions and Mixed Numbers
Ages 14 - 16

Dividing Fractions and Mixed Numbers

Students learn how to divide with fractions and mixed numbers using numerical and calculator methods.
Number: Interactive Lessons
Working with Equivalent Fractions
Ages 14 - 16

Working with Equivalent Fractions

Students learn how to convert between equivalent methods using diagrams.
Number: Interactive Lessons
Calculating a Fraction of an Amount
Ages 14 - 16

Calculating a Fraction of an Amount

Students learn how to calculate a fraction of an amount.
Number: Interactive Lessons
Mixed Numbers and Top Heavy Fractions
Ages 14 - 16

Mixed Numbers and Top Heavy Fractions

Students learn how to convert between mixed numbers and top heavy fractions.
Number: Interactive Lessons
Multiplying Fractions
Ages 14 - 16

Multiplying Fractions

Students learn how to multiply fractions using visual and written methods.

Mr Mathematics Blog

Developing Mathematical Thinking Beyond Procedural Fluency

July 10, 2026
A research-backed case exploring why over-reliance on automated math homework platforms and repetitive worksheets lowers student expectations, and how departments can build genuine mathematical thinking.

Converting Between Fractions, Decimals and Percentages

July 4, 2026
How to teach converting between fractions, decimals and percentages.

From Key Skills to Deep Connections: Problem Solving in Secondary Maths

June 28, 2026
Four problem solving lessons to develop student's mathematical reasoning and communication skills.