Multiplication facts - how fast?????

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mystery
Posts: 8927
Joined: Tue Jul 21, 2009 10:56 pm

Multiplication facts - how fast?????

Post by mystery »

I've noticed that year 4 DD's multiplication facts are fading - they were fast in year 3 but seem to be going rusty.

I've done one of those multiplication squares that people on here talk about - an 11 by 11 grid with borders. Along the top border and left hand border I've listed the numbers 2 to 12 in random order.

She has to complete the multiplication fact in each square - so all the facts from 2x 2 to 12 x 12 will be practised in random order.

What do you think would be a good kind of time for this - the sort of minimum speed you'd need for your tables not to hold you up unnecessarily when doing calculator free 11plus and SAT paper etc.
SleepyHead
Posts: 484
Joined: Thu Oct 18, 2012 10:41 am

Re: Multiplication facts - how fast?????

Post by SleepyHead »

at a guess about 30 minutes about 15 seconds each, interested to know other opinions.
Reading Mum
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Joined: Tue Oct 04, 2011 9:44 am
Location: Reading

Re: Multiplication facts - how fast?????

Post by Reading Mum »

I think that would be too slow - I would hope DD would be more like a couple of seconds each with some instant and some a bit slower. 15 secs is a long time. I am sure there have been threads on here in the past about doing 100 squares in 5 or 6 mins.
JRM
Posts: 301
Joined: Sun Sep 09, 2012 7:32 pm

Re: Multiplication facts - how fast?????

Post by JRM »

DS did these at school. They set him targets for time and it got to be a ridiculous speed writing test as far as I could see. So I don't actually have a useful answer to give you and should have just kept quiet. :lol:
My DD is in year 3 now, and she's still not 100% reliable. If your DD is, then I would just do some of those squares and set her challenges to imp,rove her time by x seconds. I'm sure it will come to a naturally sensible speed with practice.
The more that you read, the more things you will know.
The more that you learn, the more places you'll go.
Dr Seuss
sherry_d
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Joined: Tue Sep 01, 2009 4:38 pm
Location: Maidstone

Re: Multiplication facts - how fast?????

Post by sherry_d »

Around that age my DD used to get 20 to complete in 2 minutes at school. If they didn't get 18 right in the 2 mins they didn't move to the next level the following week.
Impossible is Nothing.
mystery
Posts: 8927
Joined: Tue Jul 21, 2009 10:56 pm

Re: Multiplication facts - how fast?????

Post by mystery »

Ah thank you. I should be aiming then for about 13 minutes minimum, and then speeding up from there. Thing is it takes a little time just physically to see which two numbers you are on the intersection of, and write two digits down. Maybe answering questions on a worksheet would be better.
yoyo123
Posts: 8099
Joined: Mon Jun 18, 2007 3:32 pm
Location: East Kent

Re: Multiplication facts - how fast?????

Post by yoyo123 »

would say instant recall, like a knee jerk reaction.

try
http://www.sheppardsoftware.com/mathgam ... cation.htm" onclick="window.open(this.href);return false; (fast version)


http://www.arcademicskillbuilders.com/g ... eteor.html" onclick="window.open(this.href);return false;

to build up speed..

he who hesitates is lost! ( or gets his spaceship blown up)
JRM
Posts: 301
Joined: Sun Sep 09, 2012 7:32 pm

Re: Multiplication facts - how fast?????

Post by JRM »

I think getting used to that style of grid helps your speed for doing the grids. The overall aim is for instant recall though. When DS does it he picks a line and works accross it. So if there is a 3, he just works accross as if it is a jumbled 3x table test. Then the next row might be 8 and he works across that.

Spaceships sound more fun.
The more that you read, the more things you will know.
The more that you learn, the more places you'll go.
Dr Seuss
yoyo123
Posts: 8099
Joined: Mon Jun 18, 2007 3:32 pm
Location: East Kent

Re: Multiplication facts - how fast?????

Post by yoyo123 »

Spaceships sound more fun.
:D

have a go , it's strangely addictive!!
JRM
Posts: 301
Joined: Sun Sep 09, 2012 7:32 pm

Re: Multiplication facts - how fast?????

Post by JRM »

I just have. And I should be putting a poorly 4 year old to bed. Why have I got more addicted to this place now that the 11+ is over and done with? You are all a bad influence.
The more that you read, the more things you will know.
The more that you learn, the more places you'll go.
Dr Seuss
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