Basic Negative Numbers Exercises for 11+ Maths
21 October 2026
Understanding negative numbers
Negative numbers are less than zero and are written with a minus sign in front. You will find them on the left side of zero on a number line.
Key insight: Children often see negative numbers in temperature, bank balances or when measuring below sea level.
Rules for adding and subtracting
When adding a positive and a negative number, find the difference between the two numbers. The answer takes the sign of the number with the greater absolute value.
When subtracting, remember that subtracting a negative is like adding a positive.
Worked example
-5 + 8
First, compare the positive and negative values: 8 and 5.
Find the difference: 8 - 5 = 3.
The positive value is greater, so the answer is positive.
The correct answer is 3.
Practice tips for parents
Encourage your child to use a number line when first practising negative numbers. This helps them visualise moving left for negatives and right for positives.
Key insight: Regular practice with simple sums builds confidence before moving on to more complex problems.
