Impress your Parents

Tutorials

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IMPRESS YOUR PARENTS

Multiplying a number by 11 is incredibly easy -
astonish your parents and friends with this.

To multiply any 2-figure number by 11 we just put
the total of the two figures between the 2 figures.

26 x 11 = 286

Notice that the outer figures in 286 are the 26
being multiplied.

And the middle figure is just 2 and 6 added up.
So 72 x 11 = 792

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<img src="/images/Tutorials/FWF/Exercise.jpg" width="43" height="43" align="absmiddle">Impress Your Parents (1)

77 x 11 = 847

This involves a carry figure because 7 + 7 = 14
we get 77 x 11 = 7₁47 = 847.

<img src="/images/Tutorials/FWF/Exercise.jpg" width="43" height="43" align="absmiddle">Impress Your Parents (2)

234 x 11 = 2574

We put the 2 and the 4 at the ends.
We add the first pair 2 + 3 = 5.
and we add the last pair: 3 + 4 = 7.

<img src="/images/Tutorials/FWF/Exercise.jpg" width="43" height="43" align="absmiddle">Impress Your Parents (3)