Sarah says that 26 divided by 8 equals 14 divided 4 because both are "3 R2. show her mistake using decimal division
2 answers:
Her mistake using decimal division is: and
The decimal numeral system is the standard system to denote the integer and non-integer numbers. The decimal numeral system is the extension to non-integer numbers of the Hindu–Arabic numeral system. The number we divide by is called the divisor. To divide decimal numbers we multiply the divisor by as many 10's as necessary until we get a whole number.
15 divided by 0.2. Therefore 15 is called the dividend and 0.2 is called the divisor. The number we divide by is called the divisor.
Problem: 15 divided by 0.2.
Let us multiply the 0.2 by 10, that shifts the decimal point out of the way:
also
So has become
(they are both 10 times larger):
. Therefore the answer is:
Back to the real question:
Sarah says that 26 divided by 8 equals 14 divided 4 because both are "3 R2." Show her mistake using decimal division
The other way to show the mistake can be seen in the picture attached below
<h3>Learn more</h3>- Learn more about decimal division brainly.com/question/10441547
- Learn more about divide brainly.com/question/11892889
- Learn more about decimal brainly.com/question/191965
<h3>Answer details</h3>
Grade: 5
Subject: math
Chapter: decimal division
Keywords: decimal division, divide, mistake, division, decimal
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Consider the set of all (not-all-zero) decimal strings of length 6. This is the set of strings
000001
000002
...
099998
099999
100000
There are obviously 100,000 strings in this set, so we have a one-to-one correspondence to the integers between 1 and 100,000. Think of any string starting with 0s as the number with the leading 0s chopped off.
There are two choices for the first digit, either 0 or 1, but a number can only contain a 6 if the first digit is 0; otherwise, the number would exceed 100,000. For every digits place afterward, if a given digits place contains a 6, then the remaining four places have 9 possible choices each, choosing from 0-9 excluding 6. If we fix the 6 in, say, the second digits place, then the number of integers between 1 and 100,000 containing exactly one 6 is
where the first 1 refers to the only choice of 0 in the first digits place, the second 1 refers to the unique 6 in the next place, and the remaining four places are filled with one of 9 possible choices.
Now, notice that we can permute the digits of such a number in 5 possible ways. That is, there are 5 choices for the placement of the 6 in the number, so we multiply this count by 5.
000001
000002
...
099998
099999
100000
There are obviously 100,000 strings in this set, so we have a one-to-one correspondence to the integers between 1 and 100,000. Think of any string starting with 0s as the number with the leading 0s chopped off.
There are two choices for the first digit, either 0 or 1, but a number can only contain a 6 if the first digit is 0; otherwise, the number would exceed 100,000. For every digits place afterward, if a given digits place contains a 6, then the remaining four places have 9 possible choices each, choosing from 0-9 excluding 6. If we fix the 6 in, say, the second digits place, then the number of integers between 1 and 100,000 containing exactly one 6 is
where the first 1 refers to the only choice of 0 in the first digits place, the second 1 refers to the unique 6 in the next place, and the remaining four places are filled with one of 9 possible choices.
Now, notice that we can permute the digits of such a number in 5 possible ways. That is, there are 5 choices for the placement of the 6 in the number, so we multiply this count by 5.