Hi,
The calculation for 1004 x 1002 is wrong. The answer is 1006008. When you multiply the units digits of two 4 digit numbers, then you should consider 0NM (NM is the product of the units digits of a number with unit digit M and another number with unit digit M).

For ex: 1011 x 1008
11 x 8 = 088 – will be the last 3 digits. Then add 8 with 1011, we get 1019. So the answer is: 1019088.

Please correct this.
Nevertheless, I enjoy your videos and I learn a lot from these lectures. I am a 4th grade student from Houston. If possible, could you upload some model number question papers (past question papers from TMSCA or UIL would be good).

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## SRM

January 13, 2016 at 10:01 pm (UTC 0) Link to this comment

Hi,

The calculation for 1004 x 1002 is wrong. The answer is 1006008. When you multiply the units digits of two 4 digit numbers, then you should consider 0NM (NM is the product of the units digits of a number with unit digit M and another number with unit digit M).

For ex: 1011 x 1008

11 x 8 = 088 – will be the last 3 digits. Then add 8 with 1011, we get 1019. So the answer is: 1019088.

Please correct this.

Nevertheless, I enjoy your videos and I learn a lot from these lectures. I am a 4th grade student from Houston. If possible, could you upload some model number question papers (past question papers from TMSCA or UIL would be good).

SRM

## anthony gillespey

January 16, 2016 at 3:56 am (UTC 0) Link to this comment

Thanks I’ve fixed it. Unfortunately test are copyrighted by Tmsca. But I’m sure your coach has plenty.

## Parzival

June 5, 2018 at 2:07 am (UTC 0) Link to this comment

If you participate in TMSCA contests, they give you blank versions of the contest you take. You could always use those.

## Parzival

June 5, 2018 at 2:23 am (UTC 0) Link to this comment

If you participate in TMSCA contests, they give you blank versions of the contest you take. You could always use those.