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Use front-end estimation to add 495 + 650 + 875. Indicate the three digits that you will add first?

User Monamona
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2 Answers

3 votes

Final answer:

Front-end estimation for adding 495, 650, and 875 involves adding the front-end digits (4, 6, and 8) from the hundreds place, resulting in an estimated sum of 1800, which is an approximation of the total sum.

Step-by-step explanation:

To use front-end estimation to add 495, 650, and 875, you first look at the front-end digits of each number, which are the digits in the highest place value. Here, those digits are 4, 6, and 8 respectively (all from the hundreds place). You would add these three digits first.

To perform the front-end estimation:

  1. Add the hundreds digits: 4 (from 495) + 6 (from 650) + 8 (from 875) = 18.
  2. Since there are no thousands digits, the 18 becomes 1800 when considering the hundreds place.
  3. The front-end estimation sum is 1800, which is the approximate sum of the three numbers.

It's important to note that front-end estimation provides an approximation, not the exact sum. When using this method, you may add or subtract a little from the result to account for the remaining digits.

User Dhruvil Patel
by
7.9k points
3 votes
i would add 4+6+8 but to make this easier i would maybe split them
User Sani
by
7.5k points
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