Hi Friends, In today's free math solver session we will talk about Estimation in multiplication/division. In mathematics, estimation is an important tool to solve the problems (which are related to our daily routine life) in a very quick and easier manner. Estimation plays an important role of handy tool to solve the problem. The concepts of estimation are most widely used in calculating the distance, lengths of time, money and many other physical quantities. In the concept of estimation in mathematics, we generally studied about the concept of rounding off. The concept of rounding off can be considered as a type of estimation. Rounding off is a technique which is used to express a number as a rounded number instead of any exact number. In mathematics, we generally perform the operation of rounding off with the decimal numbers or whole numbers.
Here we show you the process of rounding off with a number:
(a) First of all look at the place value of the digit form the right hand side of number.
(b) If the digit is less than 5 then there is no need to perform round off. If in case digit is greater than 5 then add one to the rounding digit and change all the digit to the right to the right of the rounding digit to zero.
we generally perform the concept of rounding off with the mathematical operations like multiplication and division. In the below we show you some of the example that helps in understanding the concept of Estimation in multiplication and Estimation in division.
Example A: estimate the product of given value by rounding to the tens?
346 * 17
Solution: In the above we can see that there are two whole values given. So first we perform the rounding off on the numbers:
346 becomes 350 and 17 becomes 20
Now there product will be:
350 * 20 = 7000
Example b: estimate the division of given value by rounding to the tens?
517 / 23
Solution: In the above we can see that there are two whole values given. So first we perform the rounding off on the numbers:
517 becomes 520 and 23 becomes 20
Now there product will be:
520 * 20 = 1040
In upcoming posts we will discuss about Probability and Statistics and Probability in Grade V. Visit our website for information on CBSE political science board paper
Here we show you the process of rounding off with a number:
(a) First of all look at the place value of the digit form the right hand side of number.
(b) If the digit is less than 5 then there is no need to perform round off. If in case digit is greater than 5 then add one to the rounding digit and change all the digit to the right to the right of the rounding digit to zero.
we generally perform the concept of rounding off with the mathematical operations like multiplication and division. In the below we show you some of the example that helps in understanding the concept of Estimation in multiplication and Estimation in division.
Example A: estimate the product of given value by rounding to the tens?
346 * 17
Solution: In the above we can see that there are two whole values given. So first we perform the rounding off on the numbers:
346 becomes 350 and 17 becomes 20
Now there product will be:
350 * 20 = 7000
Example b: estimate the division of given value by rounding to the tens?
517 / 23
Solution: In the above we can see that there are two whole values given. So first we perform the rounding off on the numbers:
517 becomes 520 and 23 becomes 20
Now there product will be:
520 * 20 = 1040
In upcoming posts we will discuss about Probability and Statistics and Probability in Grade V. Visit our website for information on CBSE political science board paper
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