How much is the sum of all the multiples of 3 in the 100 numbers 1-100? What is the sum of the remaining numbers?
3+6+9+12+15+18+21+14+17+30+33+36+39+42+45+48+51+54+57+60+63+66+69+72+ 75+78+81+84+87+90+93+96+99=1584
RELATED INFORMATIONS
- 1. A math problem --- 1 ~ 100, what is the sum of all the multiples of three? There should be a formula
- 2. Find the rule and fill in the number according to the following formula 2/3-2/5=4/15 5/9-5/14=25/126 8/15-8/()=8/15*8/()
- 3. Observe the following formula and fill in the numbers regularly 1+2+1= 1+2+3+2+1= 1+2+3+4+3+2+1= First question, four square squares, fill in the number The second question, nine square squares, fill in the number The third question, 16 square squares, fill in the number
- 4. Find the law and write the formula Question 1: 48 divided by 6, 8 divided by 1, 56 divided by 7, 24 divided by 3 Question 2: 18 divided by 9, 18 divided by 6, 16 divided by 4, 35 divided by 7, then fill in 2 more The third question: 700 + 800, 1500 + 5003000-5009000-6000, then fill in two more I have an answer in mind, but I'm not sure,
- 5. Find the rule and fill in the formula, (1) 1 / 5 + 2 / 5 + 3 / 5 = 2 / 5 * 3 = 6 / 5 (1)1/5+2/5+3/5=2/5*3=6/5 (2)1/7+2/7+3/7+4/7+5/7=3/7*5=15/7 (3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( )=( ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( )*( )=( )
- 6. Finding the least common multiple of 27 and 63
- 7. The greatest common divisor of 36 and 48 is______ The least common multiple is______ .
- 8. The least common multiple of 27 and 36 is______ The greatest common divisor is______ .
- 9. Find the least common multiple of 15 and 18 36 and 24 25 and 30 27 and 9
- 10. 27 and 36 54 least common multiple
- 11. From 1 to 100, there are () numbers, which may be multiples of 5 or 3
- 12. At 1, 2, 3 Of the 2000 natural numbers, there are______ Natural numbers can be divisible by 2 and 3 at the same time, and cannot be divisible by 5
- 13. In 1,2,3,4,5,6 , 19992000, take 20 numbers out of the 2000 natural numbers, so that the sum of any two numbers can be equal Make these numbers satisfy that the sum of any two numbers is a multiple of 100
- 14. The sum of all multiples of 3 in the 100 numbers 1-100 Please tell me how to find the number of items here
- 15. Find the sum of all the numbers except the multiples of 3 in the 100 numbers from 1 to 100
- 16. In the 100 natural numbers of 1, 2, 3,..., 100, how many different ways are there to take two different numbers so that their sum is a multiple of 7?
- 17. From 1, 2, 3, 4 The sum of any two natural numbers is a multiple of 100
- 18. Let the natural number 26 □ □ 08 be a multiple of 99
- 19. There's a string of numbers 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 How many of the first 100 numbers are multiples of 5
- 20. Find the sum of all numbers from 1 to 100 that are multiples of 3 and multiples of 5