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What are the rules to Estimating products and quotients of mixed numbers?
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.
Rounding off to the first digit is called?
Rounding to the first digit is simply called rounding. This will make the number equal to the same as what the number truly is.
What is 17.26 to the nearest whole number?
When rounding 17.26 to the nearest whole number, you look at the first decimal place, which is 2. Since 2 is less than 5, you round down. Therefore, 17.26 rounded to the nearest whole number is 17.
When rounding to the nearest whole number why do 5.43 an 4.68 both round to 5?
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.
What is 7.6 to the nearest whole number?
When rounding 7.6 to the nearest whole number, you look at the first decimal place, which is 6. Since 6 is greater than or equal to 5, you would round 7.6 up to the next whole number, which is 8.
Estimate 5.12 plus 4.35 by first rounding to the nearest whole number?
It is 5 + 4 = 9.
Estimate and acirc and 136 and 1462633211987 by first rounding each number to the nearest thousand.?
There is only one number, 2633211987 in the question so why estimate?
Estimate 5.12 plus 4.35 by first rounding to the nearest whole number.?
The estimated answer is 20.
What are the rules to Estimating products and quotients of mixed numbers?
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 - 13.21 by first rounding each number to the nearest ten?
what is 34.76 rounded the nearest ten eqaul
What is 137 11 68 by first rounding each number to the nearest tens?
It is: 140+10+70 = 220
What is 99 rounded to nearest ten?
100. rounding to the tenth only suggests you look at the first number(being the rightmost number) and round accourdingly
What is 67.73 54.521 first rounding each number to the nearest whole number?
68 + 55 = 123
Ian mailed a package that weighed 5.63 pounds. What is the first step in rounding this number to the nearest tenth What is the next step What is 5.63 rounded to the nearest tenth?
5.6
What is 18.7 rounded to the nearest hundredths?
18.70
What Estimate the answer to 398.22 93.87 by first rounding each number to the nearest one?
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%
What is 8.76 rounded to nearest whole number?
When rounding a number to the nearest whole number, you look at the first decimal place. In this case, the first decimal place is 7. Since 7 is 5 or greater, you round up the whole number. Therefore, 8.76 rounded to the nearest whole number is 9.
