Checking answers - further examples
I have today - 26.3.2020, seen a comment from a friend and he confirms using this in his coding of jobs submitted.
The following is what I wrote in July 2012
I have not received any comment or e-mail from anyone. Does it mean that what I have written is clear enough for everyone? I am not sure and therefore I’ll give another example. I hope someone will start commenting so that I can move forward.
The following is what I wrote in July 2012
I have not received any comment or e-mail from anyone. Does it mean that what I have written is clear enough for everyone? I am not sure and therefore I’ll give another example. I hope someone will start commenting so that I can move forward.
14X15 =
210
(14) 1+4 =5
(15) 1+5 =6
5x6 = 30
30 is a
two digit figure. Therefore we add 3+0 which gives us 3.
Therefore
3 is our check answer.
To check
if we have the correct answer for our original calculation:
14X15=
210
We take
the answer 210 and we add the digits 2+1+0 = 3
This
corresponds to our check number 3. So we have the correct answer.
One more
example just in case:
105X 16
= 1680 (The answer 1680: 1+6+8+0 =15. From here 1+5 =6
Check:
(1+0+5)
x (1=6)
Ie 6 X7
= 42
4+2 = 6
Our
check answer is the same as the original answer. Therefore our answer is
correct.
0
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915
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7/28/12
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Your system of "checks" is indeed interesting. Thank you for sharing.
ReplyDeleteThank you very much for taking the time to comment.
DeleteMost of what we know is learned from others to which we add a little of our own and share them so that more will be better informed.