Author Archives: rowlingclass4

Cube and Square Numbers

This week we have been investigating square and cubed numbers as well as their notations.

A square number is simply a number that is multiplied by itself. 25 is a square number as it is the produce of 5 x 5. Square numbers are written with a small 2 in the right hand corner.

A cubed number is the result when a number is multiplied by itself twice. The symbol for cubed is a small 3 to the right of the number. They are called cubed numbers because they can also be used to calculate the volume of a cube: since a cube is a 3d shape.

Prime and Composite Numbers

This week the children have been working hard learning about prime numbers and their features.

We had an unusual visit from a bunch of digits who looked suspicious as they stated they were all prime numbers. The children needed to be detectives for the day and investigate which numbers were not correct.

We found this –

Composite numbers are numbers that have more than two factors. Every even number is a composite numbers except for 2, which is the only even prime number.

Challenge your family.

In our Maths lesson today, the children were introduced to an activity that tested their knowledge of multiple and factors. The children loved it and have asked me to put the website address on the blog for them to play at home.

I believe our longest chain was 38. Can you beat this?

Here is the website address. https://nrich.maths.org/factorsandmultiples

Identifying different numbers

This week the children have been learning the difference between multiples and factors.

Multiples are numbers that can be divided exactly by another number. Also, it is a number which is in the time table of the number you are looking at.

Factors are numbers you can multiply to get another number. They normally come in pairs.

It is really important that the children know their time tables fluently. If your child is struggling, it would be very useful for them to practice using TT Rockstars.

Hall of Fame

This week, there have been numerous children working really hard. Here a few that were noticed in Maths.

Subtracting

This week, the children have been recapping subtracting 4 digit numbers from 4 digit numbers with one exchange. From here they began to consolidate their knowledge when subtracting using formal written methods. Here, place value is extremely important and the knowledge of the value of each digit in its place value. By the end of the week, most of the children are feeling confident when subtracting any given number, be it 4 or 5 digits from a 4 digit number with multiple exchanges.

All the children should be very proud of their achievements this week.

Adding and Subtracting

This week, the children have recapped adding four digit numbers with and without an exchange. The children used visuals to actually see how we exchange and carry over to the next column.

From here we consolidated our knowledge and skills using a variety of questions.