Introduction:
Estimation is defined as the method which is used to simply the calculation in easy way. Estimation is the process of values taken for adding and subtracting to change the value into nearest and easier numbers for simplification. In considerations of small values in calculations they are changed to their nearest 10’s and for largest values of calculations they are changed to their nearest 50’s and 100’s.
I like to share this Algebra Formula with you all through my article.
Solve Online Estimation – Online Example
Solved Problems:
Example 1: Estimate 84 + 99.
Solution:
84 is changed to the nearest value 80 (i.e. nearest 10’s since it is the smallest value)
99 is changed to the nearest value 100 (i.e. nearest 10’s since it is the smallest value)
80 + 100 = 180
Example 2: Estimate 78 - 62.
Solution:
78 is changed to the nearest value 80 (i.e. nearest 10’s since it is the smallest value)
62 is changed to the nearest value 60 (i.e. nearest 10’s since it is the smallest value)
80 - 60 = 20
Example 3: Estimate 274 + 299.
Solution:
274 is changed to the nearest value 250 (i.e. nearest 50’s since it is the largest value)
299 is changed to the nearest value 300 (i.e. nearest 100’s since it is the largest value)
250 + 300 = 550
Example 4: Estimate 218 - 56.
Solution:
218 is changed to the nearest value 200 (i.e. nearest 100’s since it is the largest value)
56 is changed to the nearest value 50 (i.e. nearest 50’s since it is the largest value)
200 - 50 = 150
Example 5: Estimate 329 - 54.
Solution:
329 is changed to the nearest value 300 (i.e. nearest 100’s since it is the largest value)
54 is changed to the nearest value 50 (i.e. nearest 50’s since it is the largest value)
300 - 50 = 250
Example 6: Estimate 418 - 108.
Solution:
418 is changed to the nearest value 400 (i.e. nearest 100’s since it is the largest value)
108 is changed to the nearest value 100 (i.e. nearest 100’s since it is the largest value)
400 - 100 = 300
Solve Online Estimation - Online Practice
Practice Problems to solve
Problem 1: Estimate 74 + 48
Answer: 120
Problem 2: Estimate 294 – 273
Answer: 50
Estimation is defined as the method which is used to simply the calculation in easy way. Estimation is the process of values taken for adding and subtracting to change the value into nearest and easier numbers for simplification. In considerations of small values in calculations they are changed to their nearest 10’s and for largest values of calculations they are changed to their nearest 50’s and 100’s.
I like to share this Algebra Formula with you all through my article.
Solve Online Estimation – Online Example
Solved Problems:
Example 1: Estimate 84 + 99.
Solution:
84 is changed to the nearest value 80 (i.e. nearest 10’s since it is the smallest value)
99 is changed to the nearest value 100 (i.e. nearest 10’s since it is the smallest value)
80 + 100 = 180
Example 2: Estimate 78 - 62.
Solution:
78 is changed to the nearest value 80 (i.e. nearest 10’s since it is the smallest value)
62 is changed to the nearest value 60 (i.e. nearest 10’s since it is the smallest value)
80 - 60 = 20
Example 3: Estimate 274 + 299.
Solution:
274 is changed to the nearest value 250 (i.e. nearest 50’s since it is the largest value)
299 is changed to the nearest value 300 (i.e. nearest 100’s since it is the largest value)
250 + 300 = 550
Example 4: Estimate 218 - 56.
Solution:
218 is changed to the nearest value 200 (i.e. nearest 100’s since it is the largest value)
56 is changed to the nearest value 50 (i.e. nearest 50’s since it is the largest value)
200 - 50 = 150
Example 5: Estimate 329 - 54.
Solution:
329 is changed to the nearest value 300 (i.e. nearest 100’s since it is the largest value)
54 is changed to the nearest value 50 (i.e. nearest 50’s since it is the largest value)
300 - 50 = 250
Example 6: Estimate 418 - 108.
Solution:
418 is changed to the nearest value 400 (i.e. nearest 100’s since it is the largest value)
108 is changed to the nearest value 100 (i.e. nearest 100’s since it is the largest value)
400 - 100 = 300
Solve Online Estimation - Online Practice
Practice Problems to solve
Problem 1: Estimate 74 + 48
Answer: 120
Problem 2: Estimate 294 – 273
Answer: 50
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