Addition and subtraction sums include the plus or minus sign. If you are worried about your addition and subtraction - don't be! With practice, they are very easy operations to carry out.
In this first quiz, you'll get some practice with dealing with really easy numbers. TIP: With numbers less than 100, add the tens first and then add the units. For example:
Play this 11-plus Maths quiz and if you get full marks, move onto the Easy quiz in this series, and so on. When you've got all 40 questions correct ~ without using a pencil and paper ~ then you will have a really good grasp of addition and subtraction.