Estimating square roots is the hardest type of estimating question you will see, and is only for HIGHER students. Not only does this miss the point of these estimation questions, but it puts unnecessary pressure on you. My internal dialogue went something like: “I don’t know how much it costs to plan the Olympics.” “Should I be thinking in terms of millions or billions?” “Th… The goal is to make reasonable, logical assumptions and if you are wrong on your assumptions, that is totally fine—after all, some of the figures used to make the estimation are quite obscure and you do not have access to the data during the interview. The approximate cost of the 2 adult tickets is 2 \times 30 = \pounds 60. First, we need to find 2 square numbers either side of 98. Estimator related Frequently Asked Questions by expert members with job experience as Estimator. How to succeed in Cost Estimating?! State if your answer is an overestimate or underestimate. Rounding to the Nearest Tens for 2-Digit Numbers, Estimate Addition by Rounding to the nearest Ten for 2-Digit Numbers, Estimate Subtraction by Rounding to the nearest Ten for 2-Digit Numbers, Rounding to the Nearest Tens for 3-Digit Numbers, Estimate Addition by Rounding to the Nearest Tens for 3-Digit Numbers, Estimate Subtraction by Rounding to the Nearest Tens for 3-Digit Numbers, Rounding to the Nearest Hundred for 3-Digit Numbers, Estimate Addition by Rounding to the Nearest Hundred for 3-Digit Numbers, Estimate Subtraction by Rounding to the Nearest Hundred for 3-Digit Numbers, Rounding to the Nearest Tens for 4-Digit Numbers, Estimate Addition by Rounding to the Nearest 10 for 4-Digit Numbers, Estimate Subtraction by Rounding to the Nearest 10 for 4-Digit Numbers, Rounding to the Nearest 100 for 4-Digit Numbers, Estimate Addition by Rounding to the Nearest 100 for 4-Digit Numbers, Estimate Subtraction by Rounding to the Nearest 100 for 4-Digit Numbers, Rounding to the Nearest 1000 for 4-Digit Number, Estimate Addition by Rounding to the Nearest 1000 for 4-Digit Number, Estimate Subtraction by Rounding to the Nearest 1000 for 4-Digit Number, Rounding Underlined Digit to the Nearest 10 or 100, Estimate Addition by Rounding Underlined Digit to the Nearest 10 or 100, Estimate Subtraction by Rounding Underlined Digit to the Nearest 10 or 100, Rounding Underlined to the Nearest 10 or 100 or 1000, Estimate Addition by Rounding Underlined Digit to the Nearest 10 or 100 or 1000, Estimate Subtraction by Rounding Underlined Digit to the Nearest 10 or 100 or 1000, Estimate Product by Rounding Underlined Digit to the Nearest 10 or 100 or 1000. Estimation (Introduction) Estimation is a Skill for Life. Bundle. To elaborate this rationale, let’s try to answer the first question. I mentioned this above, but it’s worth repeating. Especially as a student, you are trained to think in terms of black-and-white with math problems – your answer is either right or wrong. Mahmuh Khaddi. Here is what interviewers would consider as a top notch answer to an estimation question: Logical plan of action that is easily understood. The way we estimate answers to calculations is simple – we round every number involved to 1 significant figure, unless stated otherwise, and then perform the calculation with those numbers instead. These estimation questions measure how logical you can be, how you break complex ideas into simple ones and how good you are at calculation. Take the Quiz for competitions and exams. Make sure you are happy with the following topics before continuing. ANS: A. Q No: 48. 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