Question: How Do You Know If An Estimate Is Reasonable?

What is an answer?

1a : something spoken or written in reply to a question His answer surprised us.

b : a correct response knows the answer.

2 : a reply to a legal charge or suit : plea also : defense.

3 : something done in response or reaction His only answer was to walk out.

4 : a solution of a problem More money is not the answer..

Why is it good to estimate?

In real life, estimation is part of our everyday experience. … For students, estimating is an important skill. First and foremost, we want students to be able to determine the reasonableness of their answer. Without estimation skills, students aren’t able to determine if their answer is within a reasonable range.

What is an example of estimate?

Estimation is often done by sampling, which is counting a small number of examples something, and projecting that number onto a larger population. An example of estimation would be determining how many candies of a given size are in a glass jar.

What is the reasonable estimate?

A reasonable estimate does not exceed the original numbers from a problem.

How do you check for reasonableness in math?

Perform the actual multiplication problem either by hand or with a calculator. In this example, students would multiply 21 times 31 to get 651. Subtract the smaller number from the larger one to check for reasonableness. In this example, you would subtract 600 from 651 to get 51.

How do you explain an estimate?

To find a value that is close enough to the right answer, usually with some thought or calculation involved. Example: Alex estimated there were 10,000 sunflowers in the field by counting one row then multiplying by the number of rows.

Can an answer be incorrect even if it looks reasonable yes or no?

Explanation: Yes, an answer can be incorrect even if it looks reasonable, for two main reasons: The assumptions (premises or statements) on which the reasoning is based are wrong.

What does mean reasonable?

Reasonable describes someone or something that’s sensible and fair, like your teacher who gives reasonable homework assignments — they don’t take you forever to do and they relate to what you are studying. If you’re reasonable, you have good sense and judgment.

How do you explain standard algorithm?

A standard algorithm is a step-by-step way to solve a problem. Here we are going to focus on what a standard algorithm is for basic multi-digit math, although there are many, many algorithms to solve all kinds of different problems.

How is estimation helpful when finding a product mentally?

Estimating keeps you from making a huge mistake. it will make it easier to solve the problem. Also it would be faster because you don’t have to get the exact amount like cooking for groups of people and you don’t know how many people are coming so you estimate.

What are two ways to estimate?

There are different methods for estimation that are useful for different types of problems. The three most useful methods are the rounding, front-end and clustering methods.

Which number is the best estimate for 819 279?

Therefore, the best estimate is 1100.

How do you check for reasonableness in Division?

You can determine if an answer in division is reasonable by learning to estimate the answers. Round the divisor to the nearest 10 or 100, depending on how many digits are in the divisor.

Which is the best estimate of 162% of 79?

So the estimate of 162% of 79 is 130. Hope this helps!

How can you estimate to check one of your answers?

Well, one way to use reasonableness is to estimate the answer to see if your answer is an outrageous answer or not. So, looking at your problem, you see that you are multiplying a two hundred something number by 4 and then subtracting 10 from it.

Is 8000 a good estimate for the sum of 3816 and 467 if it is explain why it is a good estimate if it is not explain why it is a bad estimate?

The given estimate is not good estimate because is far away from the actual sum. The estimate is bad because the numbers are not rounded correctly.