Posts tagged as "decimal fractions"

Another in our series of adding decimals mentally, suitable for year 5 children. A good understanding of place value and decimals is needed for this, especially for the second set of questions.
Look out for a common error. For example: 0.3 + 0.48 answered as 0.51. In this case the 0.3 has been thought of as [...]

This page is all about using mental strategies to add decimal fractions. Before attempting this children should be able to add two 2-digit whole numbers in their heads and have a good understanding of place value.
The mental process of adding 2.4 and 3.7 is almost the same as adding 24 and 37; in fact many [...]

It is not often that you see maths for primary school children which includes thousandths. But the justification is that in certain areas of measurement children might well come across them. For example there are 1000 metres in a kilometre so a distance might be written as 2.345 k, where the 5 is 5 thousandths [...]

It is important that children recognise that the value of a digit depends on its place in the number – otherwise we could only possibly have 9 numbers and zero! So the digit 1 in 120 has a different value than the 1 in 210. It is, of course ten times bigger as it is [...]

Fractions and decimals are two of the sticking points in maths, but here we have a maths worksheet which neatly combines the two, showing the equivalence between fractions and decimal fractions. Many children do not realise the link between a digit written after the decimal point and a fraction i.e.  0.2 is the same as [...]