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How do you figure out the sum of the first 25 odd numbers without doing 1 3 5 and so on?
Wiki User
∙ 8y ago
The sum of the first n odd numbers is n squared.
25 x 25 = 625
Wiki User
∙ 8y ago
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When doing equations do you divide by the large or small number first?
large numbers
What is 0.115 to the nearest hundreds?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". The first figure to be discarded is 5 and following the above rule : 0.115 becomes 0.12 when rounded off the 2sf
What is 35.67381216 rounded to the nearest thousandth?
35.674
85.62 rounded to the nearest whole number?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". As '6' is the first figure to be discarded and this is greater than 5, then the previous figure (5) is increased by 1. 85.62 rounded to the nearest whole number is 86.
What is 65.78 rounded to the nearest tenth?
65.8
What is the first significant figure of 0.09378?
It is the first figure that's not a zero. This applies to all numbers.
How do you figure the variance on a group of numbers?
To figure the variance on a group of numbers, you must first figure out the mean, which is the average of the set. Then, substract the mean from each number in the set. Square the result of those substractions, and then average the squares. You will then have the variance.
How could you be the first in your class without studying?
you can if you are doing experiments
When doing equations do you divide by the large or small number first?
large numbers
What is the nearest hundredth for 2.8749?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". The first figure to be discarded is 4. As this is less than 5 then the previous figure (7) remains unchanged. 2.8749 to the nearest hundredth is 2.87
Which civilization discovered negative numbers?
Negative numbers do not show up much in the real world unless someone is trying to figure out a problem. The numbers were first discovered by the Indian civilization.
What is 0.115 to the nearest hundreds?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". The first figure to be discarded is 5 and following the above rule : 0.115 becomes 0.12 when rounded off the 2sf
How do you round 239 to the nearest 100?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". In this case the first figure to be discarded is 3 therefore the previous figure (2) remains unchanged. 239 rounded to the nearest 100 is 200.
What is the sum of the first four composite numbers?
You can figure out the "composite numbers" from any table of primes - all the positive integers that are not prime numbers are composite (the number one should also be excluded). The first four composite numbers are:4, 6, 8, 9
How do you round 5.164 to one decimal place?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". As the first figure to be discarded is '6' and this is more than 5 then the previous figure '1' is increased by 1. To one decimal place 5.164 is 5.2
What is 35.67381216 rounded to the nearest thousandth?
35.674
85.62 rounded to the nearest whole number?
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". As '6' is the first figure to be discarded and this is greater than 5, then the previous figure (5) is increased by 1. 85.62 rounded to the nearest whole number is 86.
