1 3 5 7 9 11 13 15 10 10 230 How do these numbers add up

The sum of three odd numbers cannot be even.

Odd numbers, also colloquially called singular numbers, in integers, the number divisible by 2 is even, the number not divisible by 2 is odd, and the odd single digit is 1,3,5,7,9. Even numbers can be represented by 2k, odd numbers can be represented by 2k+1, where k is an integer.

Among natural numbers, numbers that are not divisible by 2 are called odd numbers. In everyday life, people usually refer to odd numbers as singular numbers, which are the opposite of even numbers.

There must be an odd number and an even number in two consecutive integers.

The sum of odd numbers and odd numbers is even; The sum of even and odd numbers is odd; The sum of any number of even numbers is an even number. The sum of two numbers with the same parity is even; The sum of two numbers with different parity is an odd number.

The difference between two odd (even) numbers is even; The difference between an even number and an odd number is an odd number.

If a and b are integers, then a+b and a-b have the same parity, i.e., a+b and a-b are both odd or even.

The product of n odd numbers is odd, and the product of n even numbers is even; If one of the cis is even, then the product is even, i.e.: a*b*c*....*Even number*x*y=even, where a, b, c、...x and y are both integers, and the formula can be simplified as: odd number * even number = even number.

The odd number of single digits is ; The single digit of an even number is .

The square of the odd number is divided by the remainder of 1.

The square difference of any two odd numbers is a multiple of .

An odd number is not divisible by 2, it is divided by two and leaves one.

Because the numbers given in this problem are all odd numbers, and the sum of three odd numbers is still an odd number, and it is impossible to get an even number of 30, so there is no solution to this problem.

However, when you get to university, this problem will be solved.

Derivative is an important fundamental concept in calculus. When the independent variable x of the function y=f(x) produces an incremental δx at a point x0, the ratio of the incremental δy of the output value of the function to the incremental δx of the independent variable is at the limit a when δx approaches 0 if it exists, a is the derivative at x0 and is denoted as f'(x0) or df dx (x0).

The derivative of any constant is 0, and the sign of the derivative is ', so the three blanks are filled with 15, 15, 15'. 15' = 0, so, 15 + 15 + 15 ' = 30.

I hope I can help you with your doubts.

These numbers add up to three digits to make them equal to 30 ().

Hello, these numbers should be added to three digits to equal 30, there is no reason for this: and 30 is an even number, but all the questions provided are odd numbers, we know an odd number + odd number = even number, then odd number + odd number + odd number = odd number, so the question does not exist.

Case 1: 3! +11+13=30 （3!=6)

Solution 2: log3 (9)+3 +1=30 (log3 (9)=2,))

Option 3: Option 4: 1'+15+15=30 (the reciprocal of any constant is 0).

Scheme 5: 3 +3+1'=30 (3 =27 1'=0).

Option 6: 3 +9-3! =30 (uses a negative number).

Option 7: 11+13+(6)=30 (inverting 9 to 6 is suspected of being opportunistic).

Option 8: 1 (day) + 1 (hour) + 5 (hour) = 30 (hour) (change unit).

Scheme 9: 15+15+1=30 (30 in decimal is 33 in decimal and 15 is 16 in decimal).

1+5+11+13=3+7+9+11=1+3+15+11=3+5+9+13=1+5+9+15

If you use them all, it won't be equal to 30, and if you use a part, that's more.

May it help you.

The answer should be 1+11+13=30, this question is in the base of 5, in the base 5 30 is equal to 15 in the decimal system, 11 is equal to the 6 in the decimal system, and 13 is equal to the 8 in the decimal system, so the addition of 1, 11, and 13 is exactly the answer.

Or decimal eleven: 3 + 13 + 15 = 30, since there is a 9, it is more logical to use the base eleven.

If I were to answer this question, I would write two 1s in each space, one horizontally and one vertically, and it would become ten, and the sum of three tens would naturally be 30. Think about it differently.

All I can say is that there can be many answers, and in the conventional way, it is impossible to add three odd numbers to get an even number, so the idea must be extended to use other mathematical symbols. Many of the following scenarios can be combined, and the principle is to create even numbers or zeros.

Option 1: 3! +11+13=30 （3!=6)

Solution 2: log3 (9)+3 +1=30 (log3 (9)=2,))

Option 3: Option 4: 1'+15+15=30 (the reciprocal of any constant is 0).

Scheme 5: 3 +3+1'=30 (3 =27 1'=0).

Option 6: 3 +9-3! =30 (uses a negative number).

Option 7: 11+13+(6)=30 (inverting 9 to 6 is suspected of being opportunistic).

Option 8: 1 (day) + 1 (hour) + 5 (hour) = 30 (hour) (change unit).

Scheme 9: 15+15+1=30 (30 in decimal is 33 in decimal and 15 is 16 in decimal).

5 kg + 7 kg + 13 kg = 30 kg, 5 kg + 9 kg + 11 kg = 30 kg.

A few plus a few plus a few equals please use the above numbers.

1 year = 12 months + 15 months + 3 months = 30 months.

9+6+15=30, because he only said that it can be reused, but he didn't say that it can be reversed!

Answer: No solution.

These numbers are all odd numbers, and 30 is an even number, and if two odd numbers are added, sum must be an even number, and if you add an odd number, sum must be odd. In other words, if you add three odd numbers, you can only get an odd number anyway, so there is no solution to this problem.

There is no answer to this question, the sum of 3 odd numbers is still odd, 30 is even, there is no answer.

Friend, please [answer], you are the motivation for me to answer the question, thank you.

No! Three odd numbers can't add even numbers.

The sum of three odd numbers equals an odd number.

The sum of the three even numbers equals an even number.

Multiplying an odd number equals an odd number.

Multiplying even numbers equals even numbers.

Odd + Odd + Odd = Odd.

The sum of any three numbers equals 30 (even).

It's impossible.

There are various answers to this question:

1. No commentary.

The sum of 3 odd numbers is still an odd number. So there is no solution.

Second, there is an explanation.

1. Improve the production method.

If you change the decimal system to the decimal system:

2. Brain teasers:

Turn 9 upside down to 6, 6 + 11 + 13 = 30

Who says it's impossible? What if it's 11? 15+15+1=30

My idea is pretty much the same as before, but with some changes. 3!+9 + 15 = 30 The factorial of 3 is 6. Problem solved. Right?

Don't be clever anymore.

Treat 30 as time and it will be solved.

This is a very good explanation, and you will know it after studying high school math compulsory three according to the decimal number.

Write 9 upside down and it becomes 6. The answer is out! 6+9+15=30

3 + 9 + thirteen.

30 (3 and 9 I choose Arabic numerals, 13 I choose the meaning of Chinese strokes and characters in the text"XIII. XIII"How many strokes are there in two words? "XIII. XIII"What does Chinese mean? 5 strokes plus 13 is a summary of the entire thirteen, that is, 18, otherwise you will analyze how many strokes there are in thirteen?

What does thirteen mean? If you don't agree, don't let it out, and when the Indian issue comes to China, you have to follow the local customs. Since you are here, you have to combine Chinese and Western.

3 + 9 + thirteen = 30 Don't believe it? Then you write thirteen in Chinese characters for me? Don't come to China to be a scoundrel.

I'm sure you've been in elementary school, using decimals, decimal counting, that is.

The sum of 3 of these numbers equals 30

Presumably children who have studied in elementary school should know that the sum of three odd numbers is an odd number no matter what.