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Each finger represents one binary digit or bit. This allows counting from zero to 31 using the fingers of one hand, or 1023 using both: that is, up to 2^{5}−1 or 2^{10}−1 respectively.
https://www.youtube.com/watch?v=UixU1oRW64Q
Counting On is not a bad place for your first graders, with single digit addition and your 3rd graders, skip counting on their fingers for single digit multiplication. But this is not where we need students to be as they progress through mathematics.
Number of Bits | Maximum States |
---|---|
8 | 256 |
12 | 4096 (4 K) |
16 | 65,536 (64 K) |
20 | 1,048,576 (1 M) |
The human hand has 5 fingers, or to be precise, one thumb and four fingers. So, with both hands, it’s very easy to count to 10. In this case, there’s no particular order in which an individual assigns a value to a particular finger.
If you could count something on (the fingers of) one hand, it does not happen very often or exists in very small numbers: I could count the number of times he’s paid for dinner on the fingers of one hand.
Most people will say that you can count to ten, with eight fingers and two thumbs. Similarly, if you keep to one hand, and use the other to count each time you get to 12, you can have five groups of twelve – or 60. Using the sections on the second hand will bring you up to 144.
Therefore, the binary equivalent of decimal number 15 is 1111.
16 in binary is 10000.
Length of bit string (b) | Number of possible values (N) |
---|---|
7 | 128 |
8 | 256 |
9 | 512 |
10 | 1024 |
Nature gave us ten fingers, and so it is natural for us to count in tens. … Machines count bigger numbers in the same way we do: by counting how many times they run out of digits. This system is called binary and the binary number 10 means the machine ran out of digits one time. A human would call this number two.
A binary number can represent an analog voltage. An 8 bit number, for example, represents a decimal number from 0 to 255 (or −128 to +127 if two’s complement representation is used). An 8 bit number could therefore represent a voltage from 0 to 2.55 V, say, with a resolution of 10 mV.
Index finger | |
---|---|
Left human hand with index finger extended | |
Details | |
Artery | Radial artery of index finger, proper palmar digital arteries, dorsal digital arteries |
said to mean that there are surprisingly few of the things mentioned.
Manual counting, also known as hand-counting, requires a physical ballot that represents voter intent. The physical ballots are taken out of ballot boxes and/or envelopes, read and interpreted; then results are tallied.
– 1 Million: To count to 1 million will take you about 11 days. – 1 Billion: To count to 1 billion will take you about 30 years.
At one number per second — with no breaks, at all, for any reason — it would take 11 days, 13 hours, 46 minutes, and 40 seconds to count from one to 1,000,000.
Little finger | |
---|---|
FMA | 24949 |
Anatomical terminology |
It depends, most of the time in English we say ten fingers, and ten toes… only if people want to get really specific do they say 8 fingers and 2 thumbs…. If you want to get really specific, you could say that we have 6 fingers, 2 thumbs, and 2 pinkies.
Middle finger | |
---|---|
FMA | 24947 |
Anatomical terminology |
Dyscalculia is a condition that makes it hard to do math and tasks that involve math. It’s not as well known or as understood as dyslexia . But some experts believe it’s just as common. That means an estimated 5 to 10 percent of people might have dyscalculia.
https://www.youtube.com/watch?v=_f9aS2wqUTk
By the age of six, children can compute basic addition and subtraction in their heads for numbers up to 10. During their sixth year, many children start to solve simple word problems.
Toes are the digits of the foot. The toe refers to part of the human foot, with five toes present on each human foot. Each toe consists of three phalanx bones, the proximal, middle, and distal, with the exception of the big toe (Latin: Hallux).
In fact, the ancestor of all modern tetrapods — mammals, reptiles, amphibians and birds — had five digits on each of its four limbs back in the Devonian period, 420 to 360 million years ago. … Essentially, we have five digits because our ancestors did.
Decimal Number | 3-bit Binary Number | Octal Number |
---|---|---|
6 | 110 | 6 |
7 | 111 | 7 |
8 | 001 000 | 10 (1+0) |
9 | 001 001 | 11 (1+1) |
If you have 12 students in class you will need 4 bits.
Decimal Number | BCD 8421 Code |
---|---|
0 | 0000 0000 |
1 | 0000 0001 |
2 | 0000 0010 |
3 | 0000 0011 |