Wednesday, November 19, 2014

The Naming of Numbers

Ten is interesting because we have ten fingers. Using our fingers for counting when we get to ten we have to record the ten and then start using our fingers again.

Time to introduce a new piece, the Ten which can be exchanged with ten black counters.
Then of course the following are added into the game
Negative Ten

The cards and
and the holder

Returning to 6 x 7
and rearrange in rows of ten counters where possible .
which is the same as

Here we have four Tens and a Two, or we could say four Ts and Two and more briefly four T Two which becomes the number Forty Two.

In cards this is.

For some numbers the names have become slightly changed

is not Twoty it is Twenty and

is Thirty not Threety.

Between Ten and Twenty the names undergo even more changes.

For example

Onety Six becomes Six and One T or rather Six Ten with the e of Ten pronounced as ee as in Tee, that is Six Teen or Sixteen

Onety One is Eleven

Onety Two is Twelve

Onety Three is Thirteen

When you get to ten Tens this is one Hundred

The names from here on in remain as you would expect.

is Six Hundred and Seventy Three not something like Six Ahitchy Seventy Three.

We could rearrange this hand to

 and correctly say it is seven Tens, Three and six Hundreds.

For convention, consistency and clarity we always arrange the hand with the highest number first, next highest second and so on.

This also makes it simpler to record numbers using the symbols 0,1,2,3,4,5,6,7,8,9.
Numbers are always written in the order Hundreds, Tens and Ones.

The hand is recorded as 673.

We use 0 to fill in the blanks when there are no Ones, Tens or Hundreds.

For we say six Hundred and Three rather than six Hundred, zero Tens and Three but record it as 603.

We now have a method of counting and naming any number that results from the times tables from One to Ten up to Ten.

For example in the Six times table

rearrange to which, on counting, is the result of

The hands and produce the same result.

This we record as 8 x 6 = 48


Playing the game of maths becomes a whole lot easier if you do learn the times tables from 1 to 10.

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