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How to Use an Abacus?
A Chinese abacus is an ancient but fun to use calculator. You could even think of the Chinese abacus as the first computer. Once you get the basics of the Chinese abacus, it can be fun to use. Step 1: Lay the abacus down in front of you with the row with the smallest amount of beads away from you. This is called Heaven. The row with the most beads are called Earth. Step 2: The first column on the right represents ones. Going to the left, the next column represents tens, next column represents hundreds, and so on. Step 3: Each Earth bead represents a value of one, while the Heaven beads represent a value of 5. Step 4: Zero the abacus out by pushing all the Heaven beads up away from the center, and all the Earth beads down away from the center. The abacus is now at zero. Step 5: On the far right column, push one Earth bead up to the center, this is one. In the same column push another Earth bead up to the center, this is two. Step 6: Continue pushing the Earth beads up toward the center one at a time until you reach number four. When you get to number five, you will push all Earth beads in the far right column down a way from the center. In the same far right column, you will then pull one Heaven bead down to the center, this is five. Remember, Heaven beads represents values of five. Step 7: Continue counting from five through nine using the far right column. Step 8: Remember the far right column is ones, the next is tens. So when you reach number ten, zero the abacus out. Working from right to left still, move one Earth bead up from the second column. This is ten. So if you want to do one hundred, you simply zero the abacus out, and move one Earth bead up to the center from the hundreds column. Step 9: Now you have the idea of how to count with an abacus, you will learn how to add. Step 10: Zero the abacus out. Let's try adding 5 + 5 on the abacus. Step 11: Move the far right Heave bead (five) down to the center. This is the first number in the equation. Step 12: Now add five to the first five by moving the top Earth bead in the second column up to the center, and moving the Heaven bead in the first column back up from the center. The only bead you should have in the center is the one Earth bead in the tens column. This one Earth bead in the center is a one in the tens column, the next column to the right has no beads in the center which is zero. So the abacus is showing a one and a zero which is ten. 5 + 5 = 10. Step 13: Let's try 1 + 6 this time. Zero out the abacus once again. Step 14: Move one Earth bead up to the center to represent one. You should only have the far right Earth bead in the center at this time. Step 15: To add six, move the far right Heaven bead down to the center (five) and move one more Earth bead from the far right up to the center. Step 16: You should have only three beads in the center, and they all should be in the far right column. You should have one Heaven bead in the center (five), and two earth beads in the center (two). The answer to 6 + 1 is 7 as it shows on the abacus. You now have the basics of using an abacus. Practice counting on the abacus as first described. Then practice doing some basic additions. To generate random numbers to practice adding with I would recommend using two six sided dice. Roll both dice, and make each dice a single digit. For example, if I rolled both dice and they came up as a five and a two. Then I would add 5 + 2 to the abacus to get 7. It seems a little difficult at first, but keep practicing. Soon you will have learned an ancient art.
What is the value of the beads on the top row of an abacus?
ball sack
How does an abacus affect math today?
Please see the related link The abacus is a counting tool, used to help speed up mathematical calculations, and has been in use since ancient times. An abacus consists of beads strung on wires that run across a wooden frame. This device may seem archaic in today's world because the advancement of technology has given us calculators and modern computers but the abacus is still in use today. It is still used by some merchants in Asia and school children in Japan are still taught how to use the abacus as part of their regular curriculum. It can also be used by individuals who are blind and cannot see the display on a calculator. To use an abacus you must first understand its layout. The modern soroban (Japanese abacus) consists of several columns each containing four beads with a crossbar above them containing a single bead that represents five units. The single unit beads are known as earth beads and the beads above the crossbar which represent five units are called heaven beads. The extreme right of the abacus contains the smallest units. For example if you are working with whole numbers only, the value of the beads in right column is one unit. If using decimal places, this row can represent a tenth of a unit, a hundredth, etc. If we assume that the right-most row is a single unit, then the row immediately to the left of it would be tens which is followed by hundreds, thousands, and so on. To represent the number 27 on the abacus you would slide up two earth beads from the ten column, two earth beads from the one column, and finally the heaven bead above the crossbar in the one column. The first step to utilizing the abacus is the clear it out. You do this by sliding all the beads downwards so that none of the beads are raised. You let gravity do the work for you simply by tilting the abacus towards yourself before laying it on a flat surface. Addition and subtraction are very simple operations to perform with an abacus. The most important concept is that when using the abacus you work from left to right. This allows you to easily add and subtract numbers the way they are read. If you wish to perform the calculation 142+156, you would set the abacus to the number 142 then add one bead in the hundreds column, five beads in the tens column and 6 beads in the ones column. When there aren't enough beads in a column to perform the addition or subtraction a system using complementary numbers is implemented. The complementary numbers in respect to 10 are pairs of numbers that equal 10 when added together such as 6 and 4. When doing a problem like 5 + 6 you would set the abacus to 5 but that leaves only 4 beads in the column. Instead of adding 6 you subtract its complement which is four and then you carry the ten. Subtract four beads from the five in the one column and you are left with a single bead. You then add one bead to the ten column and you are left with the answer which is 11 of course. To do subtraction you merely add the complement instead of subtracting it and you would subtract one bead from the tens column instead of adding one. More advanced abacus techniques include multiplication and subtraction. Through practice you can become very efficient with an abacus. Some have even been able to perform calculations with an abacus faster than someone using a modern calculator. This is because of the principle of mechanization. Mechanization means we want to use as little mental power as possible when using the abacus. The purpose is for the human to operate the device and allow the device to do the calculation. In this way, the process of using the abacus requires very little thought from the operator allowing one to use it in a very fast and efficient manner. This makes the abacus a great tool for teaching young children arithmetic. There is also a system of mental arithmetic that utilizes a mental abacus to do calculations. The abacus continues to prove its worth even in the modern world where technology appears to have long surpassed the usefulness of the abacus.
What is each row below a header row?
follower row
If there is 48 rows of trees and 12 trees in each row how many trees will have to plant in each row?
I believe you said there'd be 12 in each row.
What does each row in a table represent in Excel?
In the context of it being a database, then the row of values would represent a field in that database.
How to Use an Abacus?
A Chinese abacus is an ancient but fun to use calculator. You could even think of the Chinese abacus as the first computer. Once you get the basics of the Chinese abacus, it can be fun to use. Step 1: Lay the abacus down in front of you with the row with the smallest amount of beads away from you. This is called Heaven. The row with the most beads are called Earth. Step 2: The first column on the right represents ones. Going to the left, the next column represents tens, next column represents hundreds, and so on. Step 3: Each Earth bead represents a value of one, while the Heaven beads represent a value of 5. Step 4: Zero the abacus out by pushing all the Heaven beads up away from the center, and all the Earth beads down away from the center. The abacus is now at zero. Step 5: On the far right column, push one Earth bead up to the center, this is one. In the same column push another Earth bead up to the center, this is two. Step 6: Continue pushing the Earth beads up toward the center one at a time until you reach number four. When you get to number five, you will push all Earth beads in the far right column down a way from the center. In the same far right column, you will then pull one Heaven bead down to the center, this is five. Remember, Heaven beads represents values of five. Step 7: Continue counting from five through nine using the far right column. Step 8: Remember the far right column is ones, the next is tens. So when you reach number ten, zero the abacus out. Working from right to left still, move one Earth bead up from the second column. This is ten. So if you want to do one hundred, you simply zero the abacus out, and move one Earth bead up to the center from the hundreds column. Step 9: Now you have the idea of how to count with an abacus, you will learn how to add. Step 10: Zero the abacus out. Let's try adding 5 + 5 on the abacus. Step 11: Move the far right Heave bead (five) down to the center. This is the first number in the equation. Step 12: Now add five to the first five by moving the top Earth bead in the second column up to the center, and moving the Heaven bead in the first column back up from the center. The only bead you should have in the center is the one Earth bead in the tens column. This one Earth bead in the center is a one in the tens column, the next column to the right has no beads in the center which is zero. So the abacus is showing a one and a zero which is ten. 5 + 5 = 10. Step 13: Let's try 1 + 6 this time. Zero out the abacus once again. Step 14: Move one Earth bead up to the center to represent one. You should only have the far right Earth bead in the center at this time. Step 15: To add six, move the far right Heaven bead down to the center (five) and move one more Earth bead from the far right up to the center. Step 16: You should have only three beads in the center, and they all should be in the far right column. You should have one Heaven bead in the center (five), and two earth beads in the center (two). The answer to 6 + 1 is 7 as it shows on the abacus. You now have the basics of using an abacus. Practice counting on the abacus as first described. Then practice doing some basic additions. To generate random numbers to practice adding with I would recommend using two six sided dice. Roll both dice, and make each dice a single digit. For example, if I rolled both dice and they came up as a five and a two. Then I would add 5 + 2 to the abacus to get 7. It seems a little difficult at first, but keep practicing. Soon you will have learned an ancient art.
What is the value of the beads on the top row of an abacus?
ball sack
How does an abacus affect math today?
Please see the related link The abacus is a counting tool, used to help speed up mathematical calculations, and has been in use since ancient times. An abacus consists of beads strung on wires that run across a wooden frame. This device may seem archaic in today's world because the advancement of technology has given us calculators and modern computers but the abacus is still in use today. It is still used by some merchants in Asia and school children in Japan are still taught how to use the abacus as part of their regular curriculum. It can also be used by individuals who are blind and cannot see the display on a calculator. To use an abacus you must first understand its layout. The modern soroban (Japanese abacus) consists of several columns each containing four beads with a crossbar above them containing a single bead that represents five units. The single unit beads are known as earth beads and the beads above the crossbar which represent five units are called heaven beads. The extreme right of the abacus contains the smallest units. For example if you are working with whole numbers only, the value of the beads in right column is one unit. If using decimal places, this row can represent a tenth of a unit, a hundredth, etc. If we assume that the right-most row is a single unit, then the row immediately to the left of it would be tens which is followed by hundreds, thousands, and so on. To represent the number 27 on the abacus you would slide up two earth beads from the ten column, two earth beads from the one column, and finally the heaven bead above the crossbar in the one column. The first step to utilizing the abacus is the clear it out. You do this by sliding all the beads downwards so that none of the beads are raised. You let gravity do the work for you simply by tilting the abacus towards yourself before laying it on a flat surface. Addition and subtraction are very simple operations to perform with an abacus. The most important concept is that when using the abacus you work from left to right. This allows you to easily add and subtract numbers the way they are read. If you wish to perform the calculation 142+156, you would set the abacus to the number 142 then add one bead in the hundreds column, five beads in the tens column and 6 beads in the ones column. When there aren't enough beads in a column to perform the addition or subtraction a system using complementary numbers is implemented. The complementary numbers in respect to 10 are pairs of numbers that equal 10 when added together such as 6 and 4. When doing a problem like 5 + 6 you would set the abacus to 5 but that leaves only 4 beads in the column. Instead of adding 6 you subtract its complement which is four and then you carry the ten. Subtract four beads from the five in the one column and you are left with a single bead. You then add one bead to the ten column and you are left with the answer which is 11 of course. To do subtraction you merely add the complement instead of subtracting it and you would subtract one bead from the tens column instead of adding one. More advanced abacus techniques include multiplication and subtraction. Through practice you can become very efficient with an abacus. Some have even been able to perform calculations with an abacus faster than someone using a modern calculator. This is because of the principle of mechanization. Mechanization means we want to use as little mental power as possible when using the abacus. The purpose is for the human to operate the device and allow the device to do the calculation. In this way, the process of using the abacus requires very little thought from the operator allowing one to use it in a very fast and efficient manner. This makes the abacus a great tool for teaching young children arithmetic. There is also a system of mental arithmetic that utilizes a mental abacus to do calculations. The abacus continues to prove its worth even in the modern world where technology appears to have long surpassed the usefulness of the abacus.
What does a row and column represent in a data table?
A row represents a record and a column represents a field.
What is each row below a header row?
follower row
What are row level and statement level triggers?
The FOR EACH ROW option determines whether the trigger is a row trigger or a statement trigger. If you specify FOR EACH ROW, then the trigger fires once for each row of the table that is affected by the triggering statement. The absence of the FOR EACH ROW option indicates that the trigger fires only once for each applicable statement, but not separately for each row affected by the statement.
What do you call elements in a row on the periodic table?
Elements in a row on the periodic table are called periods. They represent the number of electron shells an element's atoms have. Each period corresponds to the energy level of the electrons in an element's atoms.
What name is given to each horizontal row?
Each horizontal row in a table or spreadsheet is called a "row" or sometimes a "record."
What marks the end of each row of a table in Excel?
Each row is bounded by a border at each end.
If there is 48 rows of trees and 12 trees in each row how many trees will have to plant in each row?
I believe you said there'd be 12 in each row.
What arrangements can be used if you want to display 36 rocks in each row with the same number of rocks in each row?
The easiest would be 36 rows with 1 rock in each row!
