Writing large numbers in words is not easy but by the end of year 5 many children will be confident enough to read numbers in the millions. In the past, in the UK, a billion has been considered as a million million, but in the USA a thousand million has been thought of as a billion. This seems to be the norm in the UK these days as well so Neptune at 4 500 000 000 km from the sun can be said as “four billion, five hundred million km “.
- Free Year 5 Maths Worksheets
- © 2009 Maths Blog