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 Post subject: Question regarding speedPosted: Sat Oct 21, 2017 7:24 pm

Joined: Sat Jan 09, 2016 6:45 pm
Posts: 303
DD worked out the answer to the following question:

ABC 148
ABC 148
+ABC 148
BBB 444

It took her longer than I think she'll have in the exam and I was wondering if someone can give me an idea on how to encourage her to eliminate certain numbers instantly?

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 Post subject: Re: Question regarding speedPosted: Sat Oct 21, 2017 7:43 pm

Joined: Mon Feb 12, 2007 2:21 pm
Posts: 16254
I'd look out more of these so she can practice them.

In the 100s column you have A, A and A - A has got to be 3 or less as there's no carry. So this has implications on B ...

Carry on like this eliminating digits.

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 Post subject: Re: Question regarding speedPosted: Sat Oct 21, 2017 7:56 pm

Joined: Sat Jan 09, 2016 6:45 pm
Posts: 303
Thank you as always Guest55! She isn't tutored and I am not very good at Maths so you can imagine the fun we have .

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 Post subject: Re: Question regarding speedPosted: Sat Oct 21, 2017 8:00 pm

Joined: Mon Feb 12, 2007 2:21 pm
Posts: 16254
MCLC wrote:
Thank you as always Guest55! She isn't tutored and I am not very good at Maths so you can imagine the fun we have .

Actually getting stuck is the key to learning maths - too many tutors and teachers jump in immediately. She needs to learn strategies for 'unsticking' herself.

Carry on

Hopefully you can see why A can't be 3 ... then carry on.

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 Post subject: Re: Question regarding speedPosted: Sat Oct 21, 2017 8:05 pm

Joined: Sat Jan 09, 2016 6:45 pm
Posts: 303
Thank you!

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