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I was given this question and I had to try and figure out the times table and the amount that it was shifted up by.

My numbers were:
180 438 481 610 653

First you have to find out how much there is between each number, for instance, the difference between 481 & 438 is 43 & the difference between 653 & 610 is also 43 .

Then you get the lowest number you have (180) and divide it by your difference (43)
180/43 is approximately 4, then you go 4 x 43 = 172, then you take 172 from 180 (180-172) = 8

So you end up with your times table (43) and the number that you've shifted it by (8) .

It is all most like a linear equation y=mx+c .
So you have to find your multiple (43) and your constant (8) so you end up with y=43x+8