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February 28, 2021

Quick Answer: Can An Answer Be Incorrect If It Looks Reasonable?

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..

Which is the most reasonable way to estimate 26% of 88?

One-fourth is closer to 26% and 88 is closer to 90.

What is the most reasonable estimate for 54% of 168?


How can estimating quotients help me to place the decimal correctly?

You will need to multiply and then estimate the solution. Start by multiplying just as if you were multiplying whole numbers. Because the original numbers have 4 digits total after their decimal points, insert a decimal point into your answer so that it has 4 digits to its right.

Which number is the best estimate for 819 279?

Therefore, the best estimate is 1100.

How do you assess the reasonableness of your answer?

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 200-something number by 4 and then subtracting 10 from it.

How do you know that the answer to a decimal subtraction problem is reasonable How can you check that the answer is correct?

❖ You know the answer to a decimal subtraction problem is reasonable by estimating. You can also add up the subtrahend and the difference to check if your answer is correct.

What is the reasonable estimate?

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

How can you use estimation to help find a solution?

Using estimation can help you check to see if your answer is reasonable. Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted.

Why is it important to estimate to check for reasonableness?

Checking for reasonableness is a process by which students evaluate estimations to see if they are reasonable guesses for a problem. Estimating in multiplication helps students to check their answers for accuracy. … Instruct students to make an estimate on a solution based on compatible numbers.

How could you use estimation to determine if your answer is reasonable explain 2 points?

The correct answer is: Make your estimate first. Once you have completed your exact calculations, compare your answer to your estimate. If your answer is close to your estimate, then your answer can be considered reasonable.

What makes it important to know how do you estimate products?

Without estimation skills, students aren’t able to determine if their answer is within a reasonable range. … If they use the estimation of 500 x 30 to arrive at 15,000, they quickly realize that their place value is way off and that their work needs to be redone.

What are estimation strategies?

Some of the estimation strategies are: Front-End Strategy and Closest-Ten Strategy (or rounding). Estimating sums and differences is valuable because it helps predict an answer and check a calculation. When using estimation in a problem solving context, there are important things to keep in mind.

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.

How do you know if an answer is reasonable?

To be reasonable means to be as much as is appropriate or fair. In math, reasonableness can be defined as checking to verify that the result of the solution or the calculation of the problem is correct or not, be either estimating or by plugging in your result to check it.

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