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What is the value of the beads on the top row of an abacus?
ball sack
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.
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.
If there is no data for a value within the range there still needs to be a row for that value?
true
What does it mean if a number occur more than once in a row of a stem-and-leaf plot?
All it means that there were more than one observations which had the same value.
What is the value of the beads on the top row of an abacus?
ball sack
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.
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.
how to solve abacus?
There is an ancient learning tool, first used in the year 2,700 BC, that transforms the way that young children understand numeracy. "The world's oldest calculator" can help children develop number sense, build estimation skills, and even strengthen the physical synapses in the brain! When used correctly, this powerful device can form the foundation of a child's mathematical success for life. It isn't a computer or a workbook, and there is no magic involved. The tool is the humble abacus, which has been making mathematics visible for millennia! The most famous abacus might be the Chinese abacus, but there is evidence of its use in Ancient Rome, Russia, and Japan. There are even high-tech computer systems that rely on binary abacus technology to this day! You can be the next one to harness the abacus's power when you bring one home for your child! If you don't know how to use one, it's not too late to learn! Keep reading to discover the ins and outs of the abacus, and how you can incorporate it into your child's early math education! What Is an Abacus? In essence, an abacus is a very primitive calculator or computer. Mathematicians sometimes call abacuses "counting frames." A basic abacus consists of a frame with various vertical rods that are strung with beads that can move up and down. It is a tactile tool that makes quantities visible to the sighted. Today, the abacus has many applications for the blind. It's also a wonderful learning tool for young children exploring quantity for the first time. Historians are unsure who is responsible for inventing the abacus, or exactly when it was first invented. It probably originated in Ancient China or Babylon. The abacus may have had many inventors across many cultures, as you can find a version of the tool in nearly every country on earth. The word "abacus" probably comes from the Ancient Greek word "abax," which means "flat surface." The Ancient Romans translated this word into the Latin abacus. It is still called an abacus today. How an Abacus Works The frame of the abacus contains several rods strung with beads, which move up and down independently. Each rod is representative of a place value, which decreases from left to right. A single abacus can represent values into the millions, down to the decimal place! Some abacuses separate the beads into two rows of five. Moving a bead from the top row to the center counts as a quantity of five. Moving a bead from the bottom row to the top allows an individual to count up to ten. Using this system as a basis, it's possible to perform all of the basic mathematical operations on an abacus. Its strength is that it makes these calculations tactile, tangible, and visible. An ancient merchant might have used an abacus so that a customer couldn't contest a charge at the marketplace. The first computer programming languages are also based on the abacus. Computers were originally programmed using a binary system, described as a series of zeros and ones. These roughly equate to the low and high rows of the abacus, another binary system! The Abacus in Early Childhood Nobody expects a preschooler to use an abacus to count to one million or work with decimals. For young children, this tactile tool has another important developmental function. It can help them form flexible models of quantities that make complex mental math possible as they age. According to developmental theorist Jean Piaget, children experience four basic stages of cognitive development. Preschool and early elementary-aged children fall into the preoperational stage. At this stage, children gain the ability to engage in symbolic thought but need concrete visuals to make concepts tangible. An abacus can be that concrete visual. As long as children can see and manipulate quantities, they are capable of understanding them. When kids engage meaningfully with numeracy during sensitive periods of development, they retain these mental models for life. The best abacus for kids under seven is a horizontal wooden abacus. Here are a few meaningful ways to use an abacus with a young child. Teach Patterning With an Abacus One of the most fundamental skills in both math and reading is patterning. Children who can identify, name, and complete patterns are more prepared for complex learning than their peers. You can use a colorful abacus to encourage these early patterning skills. You may want to create and photograph a series of simple patterns for your child to copy. This encourages an early counting principle called one-to-one correspondence. It forms the basis for all numeric understanding moving forward. Understanding Tens Using an Abacus The mathematics used today is base ten mathematics. Understanding how to decompose a quantity of ten is a skill that will come in handy as a child begins formal mathematical education. You can introduce the concept using a guessing game.
What is the value of the second row?
13
What does the ROW function do in Excel?
It gives you the row part of a cell reference. =ROW(D3) This will give the value 3, as that is the row part of the cell reference.
What is a row in a database?
A row in a database represents a single record or entry within a table. It contains a set of related data fields that are organized into columns, with each column representing a different attribute or variable associated with that record. Rows are used to store and retrieve information in a structured manner within a database.
What is the value of the second row across?
13
How do you do 4 rows in stockinette stitch?
stockinette or stocking stitch means knit one row, purl one row. So four rows are knit one row, purl one row, knit one row, purl one row.
What is an Excel reference function that looks for a value in the top row of a table or array of values and returns the value in the same column from a row you specify?
hlookup
If there is no data for a value within the range there still needs to be a row for that value?
true
How do you find the largest and smallest number row wise and column wise?
Use the function MAX to find the largest value. Use the function MIN to find the smallest value. If you want to find the value in a row, use the range of the cells in the row; for column, use the range of cells in the column. =MAX(A1:A12) will find the largest value in column A (from row 1 through 12). =MIN(A1:M1) will find the smallest value in row 1 (from column A through M).
