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Mental Maths

SPRING 1 - MENTAL MATHS

 

Remember: little and often is the best policy.  Just 5 minutes each day will help. smiley

 

Week 1 - Mental Maths w/c 10th January. To be quizzed on Thursday 20th January.

 

This week your focus is going to be on your 4-times tables.  We did some work on these time tables in class before the holidays.  Over the coming weeks, your 3 and 8-times tables must also be your focus at home and I will be asking you to practise these at home too.

 

You can play on the times tables games we are familiar with, use the song to help you, get someone to ask you quick fire questions, such as, "What is 6 X 4?".  

Week 2 and 3 - Mental Maths w/c 17th January. To be quizzed on Thursday 27th January and Thursday 3rd February.

 

This week and next I really want you to focus on your 3-times tables (up to 3 x 12).  I would initially begin with practising these in order if you need to and next week (27th January) I will be asking you to write these out in order as quickly as you possibly can.  I will do this against a stop-watch and see who are the fastest children in the class! wink  If you are not so confident, start by writing these out slowly and see how you can improve with your speed.  You can send me some of your times!  If you are already fast, show me how fast you can be!!!

 

The following week (3rd February) I will be doing these out of order, so please ensure you can recall your 3-times tables as best you can!

 

You can play on the times tables games we are familiar with, use the song to help you (in the Handy Hints section) or get someone to ask you quick fire questions, such as, "What is 6 X 4?".  

 

 

 

 

 

 

 

 

 

 

 

 

AUTUMN 2 - MENTAL MATHS

 

First of all, thank you to those of you who are obviously working hard at home on your mental maths skills.  Remember: little and often is the best policy.  Just 5 minutes each day will help. smiley

 

Mental Maths w/c 1st November. To be quizzed on Thursday 11th November.

 

This week, I would like you to practise 10 more and 10 less than a number.  Begin with 2-digit numbers in order to really get you going, then move on to 3-digit ones.  When doing the 3-digit ones, start easier (and do not cross any hundreds boundaries, such as 153+10 or 243-10.  Then move on to calculations that do, such as 198+10 or 203-10.  Think carefully about the hundred before or after when doing this).

 

You might generate numbers of your own, using the online dice below or by making number cards (0-9) out of scraps of paper to choose from.  If you wish to use the online hundred square for numbers up to 100, you can do, but I am sure most of you will be fine without.

 

REMEMBER: - The aim is to be as quick as possible!  See how fast you can be! yes

- You move one place down the square to add on time and one square back to take away 10. 

- The ones DO NOT change!

Mental Maths w/c 8th November. To be quizzed on Thursday 18th November.

 

Last week, you worked on adding and taking away 10.  This week, I would like you to practise adding and taking away multiples of 10, e.g. adding 20 or taking away 30.  Like last time, begin with 2-digit numbers in order to really get you going, then move on to 3-digit ones.  When doing the 3-digit ones, start easier (and do not cross any hundreds boundaries, such as 153+20 or 243-40.  Then move on to calculations that do, such as 198+20 or 203-30.  Think carefully about the hundred before or after when doing this.

 

You can do this in a similar way to last week.

 

Thank you!

Mental Maths w/c 15th November. To be quizzed on Thursday 25th November.

 

Please use this week as an opportunity to consolidate last week's mental maths.  Perhaps write some calculations out and time yourself to see just how fast you can work your way through these - if you feel really confident about doing this.  If you are not so confident, take this as a chance to keep practising!

 

Thank you! smiley

Mental Maths w/c 22nd November. To be quizzed on Thursday 2nd December.

 

Please practise adding hundreds to a three-digit number.  You can generate numbers of your own using the online dice below if you wish.

 

Example:

231 + 100 -->     HTO

                            231

                            331

(You have added one hundred to the hundreds column so this has changed from 2 hundred to 3 hundred).

 

Example:

145 + 200 -->     HTO

                             145

                             245

                             345

(You have added two hundreds to the hundreds column so this has change from 1 hundred to 3 hundred).

Mental Maths w/c 29th November. To be quizzed on Thursday 9th December.

 

Please practise subtracting hundreds from a three-digit number.  You can generate numbers of your own using the online dice below if you wish.

 

Example:

331 - 100 -->      HTO

                            231

                            331

(You have subtracted one hundred from the hundreds column so this has changed from 3 hundred to 2 hundred.  This time you are moving up your number square).

 

Example:

345 - 200 -->        HTO

                             145

                             245

                             345

(You have subtracted two hundreds frm the hundreds column so this has change from 3 hundred to 1 hundred).

AUTUMN 1 - MENTAL MATHS

Mental Maths w/c 13th September.  To be quizzed on Thursday 23rd September.

 

I would like you to practise your 10 and 5 times tables.  I know some of you were brilliant at these in Year 2!  Below are some games to practise on.  You will be quizzed out of order so it is important you are able to recall these times tables in whatever order you are asked to.

 

If you are already really confident on these, time yourself and see how fast you can be and/or have a go at the division facts too!

 

Please send me pictures/notes about what you have been up to and perhaps some timings too!

 

 

Mental Maths w/c 20th September.  To be quizzed on Thursday 30th September.

 

I would like you to practise your 2 times tables this week and to continue perfecting your 5s and 10s too.  These are the times tables you needed to be fast with at the end of Year 2 so it is really important you know these.  You can use the given games again if you wish – especially to time yourself.  I like how some parents videoed their child being asked different multiplication facts so you may wish to do that!

 

If you are already really confident on these, time yourself and see how fast you can be and/or have a go at the division facts too or even move onto the 3s, 4s, or 8s that you need to know by the end of this year.

 

Please send me pictures/notes about what you have been up to and perhaps some timings too!

Mental Maths w/c 27th September. To be quizzed on Thursday 7th October. 

 

For mental Maths, I would like you to practise your number bonds to make 20.

 

Start by recalling your bonds to 10 (use fingers if necessary!) You can ask a grown up to shout a number out/write a number and you write the number that then makes the bond to 10 e.g. 9 + 1 = 10.

 

Then move onto your bonds to 20. You should really know these mentally but if not, then follow what you have been shown in class! 

 

Mental Maths w/c 4th October. To be quizzed on Thursday 14th October. 

 

For mental Maths, I would like you to practise adding ones (numbers from 1-9) onto a number.

 

Start simpler, by sticking with 2-digit numbers and not crossing a tens boundary (bridging ten).

Example: 23 + 4.

Then move on to 2-digit numbers where you do bridge ten.

Example: 35 + 7

 

You can then move onto 3-digit numbers where you do not bridge ten, then do bridge 10.

Example without bridging: 126 + 3

Example with bridging:346 + 6

 

Mrs Devlin's garlic bread with cheese:

Practise crossing over hundreds, e.g. 598 + 4

 

Remember:

1) You can do these quickly in your head;

2) You can count on in your head, holding the number in your space helmet;

3) You can draw a number line to help.

Mental Maths w/c 11th October. To be quizzed on Thursday 21st October. 

 

For mental Maths, I would like you to practise subtracting ones (numbers from 1-9) from a number.

 

Start simpler, by sticking with 2-digit numbers and not crossing a tens boundary (bridging ten).

Example: 23 - 2.

Then move on to 2-digit numbers where you do bridge ten.

Example: 35 - 7

 

You can then move onto 3-digit numbers where you do not bridge ten, then do bridge 10.

Example without bridging: 126 - 3

Example with bridging: 342 - 6

 

Mrs Devlin's garlic bread with cheese:

Practise crossing over hundreds, e.g. 602 - 4

 

Remember:

1) You can do these quickly in your head;

2) You can count back in your head, holding the number in your space helmet;

3) You can draw a number line to help.

Mental Maths w/c 18th October. To be quizzed on Thursday 4th November.

 

Please can you practise a combination of adding and taking away ones from the two previous mental maths homeworks?  Pay close attention to the sign as you are doing this - DON'T ADD WHEN YOU SHOULD BE TAKING AWAY OR DON'T TAKE AWAY WHEN YOU SHOULD BE ADDING!

 

As with previous weeks, begin with 2-digit numbers then move onto 3-digit numbers when you are feeling more confident.  You could also begin by not crossing any tens/hundreds boundaries.

 

Good luck!

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