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Q: Estimate 5.12 plus 4.35 by first rounding to the nearest whole number?

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There is only one number, 2633211987 in the question so why estimate?

A mathematician in a hurry or one who is only interested in an approximate answer does it.

The estimated answer is 20.

Estimating sumsUse rounded numbers to estimate sums.Example 1Give an estimate for the sum of 19.61 and 5.07 by rounding to the nearest tenth.Round each number to the nearest tenth.Example 2Estimate the sum of 19.61 + 5.07 by rounding to the nearest whole number.Round each number to a whole number.Estimating differencesUse rounded numbers to estimate differences.Example 3Give an estimate for the difference of 12.356 - 5.281 by rounding to the nearest whole number.Round each number to the nearest whole number.Now subtract.So 12.356 - 5.281 ≈ 7.Estimating productsUse rounded numbers to estimate products.Example 4Estimate the product of 4.7 × 5.9 by rounding to the nearest whole number.Round each number to a whole number.So 4.7 × 5.9 ≈ 30.Again, in decimals, as in whole numbers, if both multipliers end in .5, or are halfway numbers, rounding one number up and one number down will give you a better estimate of the product.Example 5Estimate the product of 7.5 × 8.5 by rounding to the nearest whole number.You can also round the first number down and the second number up and get this estimate.In either case, your approximation will be closer than it would be if you rounded both numbers up, which is the standard rule.Estimating quotientsUse rounded numbers to estimate quotients.Example 6Estimate the quotient of 27.49 ÷ 3.12 by rounding to the nearest whole number.Round each number to the nearest whole number.

what is 34.76 rounded the nearest ten eqaul

It is: 140+10+70 = 220

18.7 is already rounded to the nearest tenths. The number rounded to the nearest hundredths would be 18.70 but that assumes that rounding to the nearest tenths in the first place was loss-free.

Rounding to the first digit is simply called rounding. This will make the number equal to the same as what the number truly is.

100. rounding to the tenth only suggests you look at the first number(being the rightmost number) and round accourdingly

68 + 55 = 123

to round to the nearest whole number you have to look at the first number and if it is greater than 4 round it up but if it is less than 4 round it down hope this helps

5.6

.3000 * * * * * No. First, the given number is 2673, NOT .2673 Being an integer it is already rounded to the nearest thousand. If, the number in the question were 0.2673, then rounding it to the neraest thousand would give 0.267. If you round to the nearest ten thousand, the answer is 0.3. After the rounding you cannot retain the trailing 0s.

7.58 is already rounded to the nearest hundredth

If you are rounding to the nearest tenth (the first decimal position), it is 6050.3, since the 8 in the hundredths position would cause the 2 to round up to 3. If you are rounding to the nearest tens (not a decimal, but the second position to the left of the decimal point), it is 6050. If you are rounding to the nearest 10 decimal places, it is 6050.2870000000.

Round to the nearest tenth, the first decimal place to the right of the decimal point.

398.22 * 93.87 = 398 * 94 = (400 - 2)*(90 + 4) = 36000 + 1600 - 180 - 8 = 37,412 The exact answer, using a calculator, is 37380.9114. So the estimate is too large by 0.08%

The name comes from the way you round. Front end rounding is keeping the first number and rounding all the numbers after that. To make the last four digits in 10124 a 0, round to the nearest ten thousand. That would be 10000. 10000 is the front end rounding 10124.

3 Only 3.5 and above will be rounded of to 4 2.5 to 3.4999999999999999999 and below will be round off to 3. U consider the first decimal place when rounding of to the nearest whole number

It's the nature of rounding. When rounding to the nearest whole number, look at the tenths place. If that digit is 4 or less (like the first number) zero it and everything to the right of it out. If that digit is 5 or higher, (like the second number) increase the target digit by one and zero everything to the right of it out. 5.43 is closer to 5 than to 6. 4.68 is closer to 5 than to 4.

Round 498.32 to nearest 100: 498.32 ~= 500 Round 10.53 to nearest 10: 10.53 ~= 10 So 498.53 x 10.53 ~= 500 x 10 = 5000

When rounding to the nearest hundreds first you look at the tens place. General rule of rounding is if the number is 4 or smaller then round down, if 5 or higher then round up. For 525, the 2 is in the tens place so we should round down to 500.

Remember, we did not necessarily round up or down, but to the hundred that is nearest to 321. First, 321 rounded to the nearest hundred is: 300 When rounding to the nearest hundred, like we did with 321 above, we use the following rules: A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above. B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below. C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

The name comes from the way you round. Front end rounding is keeping the first number and rounding all the numbers after that.

You round the number either to the nearest tens , hundreds , thousands , ten thousands , hundred thousand...Rounding is a process of selecting a number that is close to a given number but easier to work with.