Counting to 1023 on your fingers

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Counting to 1023 on your fingers
Diana Franklin
How do we usually count on fingers?
How do we usually count on fingers?
1
1
1
1
1
1
1
1
1
1
Each finger has a value, and we add the values up!
How do we usually count on fingers?
Sometimes we count this way to make bigger numbers
But this doesn’t match how we usually do numbers
10
10
10
1
10
1
1
1
10
1
Each finger has a value, and we add the values up!
How numbers usually work
• What is the difference between:
– 001
– 010
– 100
– Are they all the same number?
NO!!!!!
EVERY position is worth a different value!
Counting to 1023 –
Give a different set of values!
All possible values from 0 – 1023!
128
256
64
8
512
4
2
1
32
16
Each finger has a value, and we add the values up!
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