Davidson, Michael. "How To Multiply On An Abacus"sciencing.com, https://www.sciencing.com/how-to-multiply-on-an-abacus-12564746/. 25 September 2017. APA Davidson, Michael. (2017, September 25). How To Multiply On An Abacus.sciencing.com. Retrieved from https://www.sciencing.com/how-to-...
Abacuses are so fast and accurate thatpeople stll use them today.A modern electronic calculator can add(+), subtraet(-), multiply(X) and divide(/). It can alsocalculate pereentages(%) and square roots(va).Computers are very powerful calculating machines. In a flash, a computer can do...
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Multiplying or dividing all terms in a ratio by the same number creates a ratio with the same proportions as the original, so, to scale your ratio, multiply or divide through the ratio by the scaling factor.[4] For example, a baker needs to triple the size of a cake recipe. If the...
This was a very important invention becaus e it mad e it easier to writ e big numbers and to calculate(计算)Calculating machines+On e of th e first calculating machines was an abacus(算盘) Abacuses ar e so fast and accurat e +that peopl e still us e them today.+ C How many ...
Find a binary number you want to convert. We'll use this as an example: 101010. 2 Multiply each binary digit by two to the power of its place number. Remember, binary is read from right to left.[2] The rightmost place number being zero. 3 Add all the results together. Let's go...
To find the area of a rectangle, you need to know the length (L) and the width (W). Measure each side or refer to the diagram if the numbers are provided for you. To find the area of the base of a rectangular prism, multiply the length by the width.[6] For example, say the...
The scale factor should be given to you. When you multiply the side length by the scale factor, this gives you the missing corresponding side length on the similar figure.[9] For example, if the hypotenuse of a right triangle is 5 cm long, and the scale factor is 2, to find the ...
Once you have exponents down, you can learn to add, subtract, multiply and divide polynomial expressions. Understand functions and graphs. In algebra, you'll really get into graphic equations. You'll learn how to calculate the slope of a line, how to put equations into point-slope form, ...
Since you are considering all consecutive integers to 500, . Determine the first ( ) and last ( ) terms in the sequence. Since the sequence is 1 to 500, and . Find the average of and : . Multiply the average by : . 2 Find the sum of the described arithmetic sequence. The first ...