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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Impress Your Parents (1)
- 77 x 11 = 847
This involves a carry figure because 7 + 7 = 14
we get 77 x 11 = 7147 = 847.
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.
Impress Your Parents (3)
