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What is the sum of the largest prime number and the smallest composite number within 100______ The difference is______ ．
The largest prime number within 100 is 97, the smallest composite number is 4, their sum: 97 + 4 = 101, their sum and difference: 97-4 = 93
What is the sum of the largest prime number and the smallest composite number within 100______ The difference is______ ．
The largest prime number within 100 is 97, the smallest composite number is 4, their sum: 97 + 4 = 101, their sum and difference: 97-4 = 93
How many primes are there from 1 to 100
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,
25 in all
In the natural number 1-1000, how many numbers are coprime with 1001?
The answer is 7201001 = 7 times 11 times 13, I don't know why = 720
Among 1000 numbers, there are 142 multiples of 7, 90 multiples of 11, 76 multiples of 13, 12 multiples of 711, 6 multiples of 1113, and 101000-142-90-76 + 12 + 6 + 10 = 720
Add the reciprocal of two natural numbers to get 12 / 7. The two natural numbers are ()
3,4
The sum of the reciprocal of two natural numbers is 712______ And______ ．
From the meaning of the question, we can see that the product of these two natural numbers is 12, and 7. Only the product of 3 and 4 is 12, and 7. Therefore, these two natural numbers are 3 and 4
The sum of a natural number and its reciprocal is 5.2______ ．
2 into a fraction is 515515 = 5 + 15, 5 × 15 = 1; so the natural number is 5
A natural number and itself add, subtract, divide the sum. Difference. Quotient and then add, the result is 2005
The sum, difference and quotient of a natural number and itself are added, subtracted and divided. The result is 2005. What is the original natural number?
Let this number be X
Then add to 2x, subtract to 0 and divide to 1
2X+0+1=2005 X=1002
The original natural number is 1002
The sum, difference and quotient obtained by adding, subtracting and dividing a natural number and itself. If you want to add it again, what is the original number
Let this number be X. add it to 2x, subtract it to 0, and divide it to 1
2X+1+0=1991
X=995
A natural number is added to itself, subtracted and divided. The sum difference quotient is added again. The result is 1991. What is the original natural number?
The sum of a natural number and itself is twice that
The difference of subtraction is 0, and the quotient of division is 1
So this number is (1991-1) △ 2 = 995
RELATED INFORMATIONS
- 1. Prime number of 100
- 2. Find all such primes: it is the sum of two primes and the difference of two primes Is there anything else besides five?
- 3. 1. The sum of two prime numbers is 20, and the difference is 6. What are the two prime numbers? 2. The sum of five consecutive odd numbers is 155. What are the five odd numbers? 3. When Jiajia turned on the light, she pulled the switch seven times in a row. Now is the light on or not? 100 times? 765 times?
- 4. ⑤ I'm sorry, but I've made a mistake Thank you for coming, ha, the best answer a ~ remember five years! Thank you! Supplement (1) the application of equation and the calculation of equation are not reminded
- 5. Answer to 100 exercises of solving equations in grade five
- 6. Calculating X / X-2 + X + 1 / 2-x by fractional addition and subtraction
- 7. 1. Given x-3y = 0, find the value of (2x + y) of (x's Square - 2XY + Y's Square) 2. Given that (1 / b) - (1 / a) = 1, find the value of (2a + 3ab-2b) of (a-2ab-b)
- 8. In a long-distance race of S, Xiao Ming runs half the distance at speed V1 and the other half at speed V2, while Xiao Gang runs half the time at speed V1 and the other half at speed V2 (V1 ≠ V2). Please analyze which of Xiao Ming and Xiao Gang will win the race according to the conditions provided by the title (Note: there should be sufficient reasons and analysis process)
- 9. 1. Under what conditions, the value of fraction 2x-5 / X & # 178; + 4 is negative. 2. The meaningful condition of fraction X-1 / X - 2 is__________ The meaningless condition is____________ The value is zero if______________ ?
- 10. 1. If 3x-2y = 0, then (x + y): (X-Y)=______
- 11. Which numbers within 100 are the product of three prime numbers? Such as the title different
- 12. All prime numbers within 100 fast
- 13. How to calculate all prime numbers within 100
- 14. A fraction plus a fraction is one fourteenth Two scores cannot be repeated
- 15. A fraction whose numerator is larger than the denominator is a false fraction___ (judge right or wrong)
- 16. What are the true fractions with denominator 6, and what are the false fractions with numerator 6
- 17. The meaning of three tenths minus two fifths is that we know that two addends () are three tenths and one of them is () to find another addend emergency
- 18. What is the exact definition of rational number? In the chapter of rational numbers in grade seven, the following questions are not clear: 1. Positive numbers, negative numbers and 0 are all called rational numbers. π is a positive number, but it is not a rational number, 2. Integers and fractions are called rational numbers. 0.999... Can't be converted into exact fractions, but it's rational numbers, 3. Integers and circular decimals are collectively called rational numbers. I think it's more accurate. Why don't we say that in textbooks? If the examination of such a judgment question: positive numbers, negative numbers and 0 collectively referred to as rational numbers or integers, scores collectively referred to as rational numbers. I judge whether it is right or wrong?
- 19. Multiplication is a simple operation to find several identical ()?
- 20. When Xiao Zhang calculates the division with remainder, he takes the divisor 113 as 131, and the result quotient is 3 more than the original, but the remainder is exactly the same, so the remainder of the problem is () A. 、4B. 5C. 6D. 7