Maths Magic

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Maths Magic

Downloadable worksheets Games Maths Magic

Resources for Interactive Whiteboards Starters

Super Fast Addition
Get a friend to write down two numbers less than 20, one under the other without you seeing them. Tell your friend to make a third number by adding the first two numbers together and to write the third number below the first two. Then tell him to make a fourth number by adding the second and third, a fifth by adding the third and fourth, and so on, until there is a column of ten numbers. Now if you look at the numbers you can quickly give the total of the column.

All you do is multiply the seventh number by 11, in the example below it is 142 x11.

Example 14+9+23+32+55+87+142+229+371+600 =1562

Some online Maths magic: http://www.counton.org/mathsmagic/

Simple numerical tricks: http://www.wannalearn.com/Academic_Subjects/Mathematics/math_magic.html

Five tricks from Chris Budd, Professor of Applied Maths at Bath University : http://motivate.maths.org/conferences/conference.php?conf_id=31

Mainly mathematical card tricks: http://web.superb.net/cardtric/tricks/math.htm

Magic tricks using Maths: http://www.easymaths.com/Curious_Maths_magic.htm

Lots of interactive Maths including some Maths magic: http://www.cut-the-knot.org/Curriculum/index.shtml (numbers 250 - 257)