- Maths Help
- AlgebraToggle Dropdown
- DecimalsToggle Dropdown
- Place value
- Comparing and ordering decimals
- Rounding to a place
- Significant figures
- Standard form and engineering notation
- Adding decimals
- Subtracting decimals
- Multiplying decimals
- Dividing decimals
- Converting decimals to fractions
- Converting decimals to percents
- Converting between decimals, fractions and percents
- Ordering decimals, fractions and percents

- FractionsToggle Dropdown
- Understanding fractions
- Simplifying (reducing) fractions
- Equivalent fractions
- Comparing fractions
- Ordering fractions
- Mixed numbers and improper fractions
- Adding fractions
- Subtracting fractions
- Adding and subtracting mixed numbers
- Multiplying fractions
- Dividing fractions
- Multiplying and dividing mixed numbers
- Converting fractions to decimals
- Converting fractions to percents
- Converting between fractions, decimals and percents
- Ordering fractions, decimals and percents

- Integers
- MeasurementToggle Dropdown
- Metric units of measure
- Perimeter of squares, rectangles and triangles
- Circumference of circles
- Area of squares, rectangles and triangles
- Area of circles
- Surface area of cubes, cuboids and triangular prisms
- Surface area of cylinders
- Volume of cubes, cuboids and triangular prisms
- Volume of cylinders, cones, spheres and pyramids

- PercentsToggle Dropdown
- StatisticsToggle Dropdown
- TrigonometryToggle Dropdown

In this module, you can study how to add and subtract integers.

This ten-minute video from Khan Academy uses the number line to help you visualise adding and subtracting negative numbers. It's a long video, but it's worth watching the whole thing.

If you remember lyrics easily, the song in this video can help you remember how to add and subtract integers.

This short video explains why subtracting a negative is the same thing as adding a positive.

You add and subtract with negative numbers in everyday life when you estimate changes in temperatures and bank balances.

Use these search terms to find additional resources:

*adding with negative numbersinteger addition*