Maths Resources
Year 3 maths worksheet: Double 2-digit numbers
Doubling 2-digit numbers can be quite easy or fairly tricky; it all depends on the numbers. For a number such as 23, doubling is easy as the tens and units can be doubled in your head in either order and can be easily remembered.
However, doubling 37 leads to more complex mathematical thinking as at least three separate operations are needed to reach the correct answer. Probably the easiest way is to double the 30 to make 60. Holding 60 in the back of your mind add the 7 to make 67 and then add the 7 again to make 74. Another way is to double the 30 to make 60 and then double the 7 to make 14 and then add the 60 and the 14 to make 74.
There are other ways, including doubling 40 to make 80 and taking 6 away (double 3) to reach 74. It is always a good idea to see how children tackle these types of questions, ask them what they did and see if it is an efficient way.
Year 4: Revise adding to 50
Here is a snappy little worksheet to check that children can add on from 2-digit numbers to make 50. There are several different mental strategies that can be used, but the most efficient is usually to count on to the next whole ten and then count on in tens to 50.
Watch out for a common error whereby children add on to make 10 and then add on again from the original tens number; this will give them a total 10 more than is correct.
Year 6 revision: More rounding millions
Here we have another in our series of rounding larger numbers to the nearest million. This page looks in particular at the world’s oceans and the numbers involved have already been rounded to the nearest 1 000 sq km.
Children need to be confident when dealing with larger numbers, but this will only happen if they are secure in their knowledge of place value and how to read and write numbers. It may well be worth going back over this before attempting rounding.
Year 3 maths worksheets: Subtraction
Many children still need plenty of practice with adding and subtracting small numbers mentally. Here is a nifty way to give practice in subtracting a single digit from a teen in a slightly different way from the usual questions.Suitable for bright year 2 or year 3 children.
The second page shows a blank grid which can be printed out and your own choice of numbers put in – useful for children with particular problems with subtraction.
These pages can be found in our Year 3, Know Number facts section
Year 6 revision: Rounding millions (1)
Many children in Year 6 have difficulty reading and writing large numbers, including millions. This page is all based on millions as it looks at the area in square kilometres of some of the largest countries in the world. The task is to round the numbers to the nearest million, and as it happens all of these need to be rounded down.
It is well worth ‘talking through’ this page to make sure that the numbers are read correctly.
Round to million 1 (countries)
Year 4 maths worksheet: multiples of 10
The summer holidays are drawing to a close so what better for all those children just entering year 4 than a nice little mental arithmetic page. This page looks again at multiplying 2-digit multiples of 10 by a single digit. Dead easy if tables are known. If tables are not known this becomes much more difficult, so it is a good page to give to check that tables are sharp!
This page and many similar can be found in our Year 4 maths resources, Knowing Number Facts.
Multiply 2-digit multiples of 10_(p2)
Year 5 Calculator game: 8 times table
This page is another in our calculator series, this time for the 8 times table. The grid has a selection of multiples of 8 up to 10 x 8. The idea is to play with a partner, choose a square and then enter a number on the calculator that you think will produce the number in the square when multiples by 8. if successful place a counter on the square. The aim is to try and get four in a row.
Remember that if the 8 times table is not known, multiplying by 8 can be achieved by doubling, doubling and doubling again.
This page can be found in our year 5 section under Knowing Number Facts
Maths puzzle: One to nine (2)
Our first ‘One to Nine’ puzzle proved to be very popular so here is another. Aimed at upper juniors, (9-11 yr old) there are a few points to consider when getting started with these puzzles.
Firstly, the rules of Bodmas do not apply; the sentence is calculated in the order shown.
Secondly, each digit can only be used once.
Thirdly, if looking at a sentence such as a x b – c = 51, a x b can only be a maximum of 60 as the largest number to subtract is 9.
Year 6 maths worksheet: Estimating on a number line
This is the follow up maths worksheet to the earlier explanation on how to estimate on a number line up to 10 000.
Most of the work on number lines in year 6 involve using decimals so this is a good chance to make sure that large whole numbers are understood. All answers are approximate but a guess can be considered good if it is about 50 either side of the answer given. It is also worth noting that because the scale used is about 1.5 cm for a thousand and that a millimetre represents over 60, to get within 50 the approximation needs to be within a mm on the scale! Very tricky!
Practice: estimate on a number line (1)
Maths worksheet: Divide decimals by 10 or 100
This is the second in our revision sheets for dividing decimals by 10 or 100, ‘in your head’. A good understanding of place value is needed for this as there is little to do apart from move the numbers to the right. One place to the right divides by 10. Two places to the right divides by 100. Remember to put a zero in the units if there are no whole units: eg 8.7 divided by 10 is 0.87 not .87, as it would be very easy to miss the decimal and read this as 87.
Year 3 maths worksheet: Make 5 sided shapes
By Year 3 children should be familiar with the names of 5 and 6 sided shapes: pentagons and hexagons. Usually these shapes are seen in a regular form and children do not always recognise them when they are irregular. This mini investigation will help with this. A geoboard is a great help. Schools already have these, but at home it is easy enough to make one – just 9 short nails evenly spaced in a block of wood and some elastic bands are all that is needed.
When doing this it can be quite tricky to recognise two shapes which are the same but just rotated.
How to estimate on a 0-10 000 number line
This is a much trickier exercise than it first appears. Firstly, children need to be confident with reading large numbers and counting in thousands. Secondly they need to be able to visualise marks on a scale.
Only the zero and 10 000 are marked on the number line so it would be a good idea to jot down each of the thousands before trying to estimate where the arrows are pointing.
Then it is a good idea to work out if the arrow is pointing above or below the half way mark and then make an intelligent estimate according to this.
How to estimate on a number line (1)
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