The numbers children work with start getting larger in Year 3, with reading and writing up to at least 1,000. By the end of the year children will be expected to be able to count on and back in steps of 10, partition numbers, estimate numbers and round numbers to the nearest 10 or 100. Learning about fractions is also an important part of Year 3 Number, including counting in halves and quarters.
Part of this work will be to understand that a 3-digit number is made up of hundreds, tens and ones and to be able to compare and order 3-digit numbers. We have just published several new sets of pages, the first of which looks at ordering 3-digit numbers. A good deal of care is needed to ensure that all the numbers are placed in order. The key to success here is to look first at the hundreds digits and only go on to compare the tens if the hundreds digits are the same.
Other new resources include estimating on a number line from 0 to 1,000 and a digit card challenge to make as many 3-digit numbers as possible which have certain properties (e.g. are even).