Search Results For “year 6 mental length”

Using mental methods to subtract 19 from 2-digit numbers.

Paper plates are a great resource to help with mental arithmetic.

Counting back is the preliminary stage before subtracting 'in your head'. These worksheets ask your child to count back from numbers up to 20. At first they will probably use fingers or other maths material to count back, but as they gain confidence they will begin to use other mental methods and begin to know the answers ' off by heart'.

A tricky set of mental addition questions, adding teens to 2-digit numbers.

Two helpful tips on these pages: skills that are essential for fast mental calculating.

For those children who need a little extra practice at addition using mental techniques learnt earlier.

Here we have some serious 2-digit addition. On the first two pages the answers all come to just more than 100.

More on decimal fractions, including some tricky estimating on number lines and calculator work which requires sharp mental skills.

Mental addition and subtraction of multiples of 100, including crossing over the thousands.

Without using paper and pencil practise adding three small numbers as well as adding two 2-digit numbers.

Mental addition and subtraction of 2-digit numbers. These are about as hard as you would expect to get without using written methods.

A reminder that subtraction is the inverse of addition, and how this can be useful when working out mental calculations.