![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
In 1-2000, there are several numbers that are divided by 3,5,7 to make 1
The number that meets the requirements of the title is the common multiple of 3,5,7 plus 1
The least common multiple of 3,5,7 is 3x5x7 = 105
2000/105=19.5
So in 1-2000, there are 19 numbers that are divided by 3, 5, 7 to 1
0.1 0.2 0.3 0.4 0.5 = 0, punctuate the middle of each number
0.1*(0.2-0.3-0.4+0.5)=0
1.1.3.4.5.6.7 how to add punctuation between these numbers
6×7＋3×4×5－1－1
RELATED INFORMATIONS
- 1. 1 2 3 4 () 6 7 8 9 what to fill in and why In fact, to be good at observation, we should fill in a sign that is.. 1234 ＜6789
- 2. Add appropriate operation symbols between the numbers 1.2.3.4.5.6.7.8 to get 1 1（）2（）3（）4（）5（）6（）7（）8=1
- 3. 5 () 5 () 5 () 5 () 5 = 1. Fill in the operation symbol in the bracket (bracket can be added) There are several more questions: 5 5 5 5 5=2 5 5 5 5 5=3 5 5 5 5 5=4
- 4. Add "+" or "-" before the numbers 3, 4, 5, 6, 7, 8 and 9 to make their sum - 10. Please come up with two solutions
- 5. At 1, 2, 3 The algebraic sum of a plus sign or a minus sign is______ (fill in odd or even numbers)
- 6. 1-2-3+4+5-6-7+8+9-10…… +97-98-99+100=? Ask for the answer and write the process
- 7. 1+2-3+4+5-6+7+8-9+.+97+98-99+100=?
- 8. 1 / 2 + 2 / 3 + 3 / 4 +99 / 100 =?
- 9. (99 and 14 / 15) * 12
- 10. 1 / 3 + 1 / 15 + 1 / 35 + 1 / 63 + 1 / 99 + 1 / 143 + 1 / 195 It should be easy to understand
- 11. There is a column of numbers 7,2,3,1,6,5,2,3,1,6,5,2,3,1,6,5. What is the number 2000? What is the sum of the first 2000?
- 12. Fill in the appropriate sign to make the equation hold: 1 2 3 4 5 6 7 8 9 = 1000
- 13. Use 1.2.5.6.8.9 to combine equations with three or four symbols equal to 5
- 14. 1 / 2 1 / 2 1 / 2 1 / 2 = 3
- 15. One half, one third, one sixth, sign to make the result 2 If you ask someone no, you can change the position of the number. You can use +, -, *, /, and brackets,
- 16. Half a quarter an eighth a sixteenth fill in the operation symbol how to get 2 If you don't change your position, it's urgent
- 17. If "!" Is a mathematical operation symbol, and 1! =1，2！ =2×1，3！ =3×2×1，4！ =4×3×2×1… . find the value of 100! 98
- 18. If "1" is an operation symbol, and 1! = 1; 2! = 2x1; 3! = 3x2x1; 4! = 4x3x1 Then the value of 100! △ 99! Is?
- 19. Simple operation: (1 + 3 + 5 +...) +1999)-(2+4+6+… +How to do it?
- 20. Limx tends to be 1 (the difference between radical X and 1) / (the difference between (3 + x) and (2)