百度试题 结果1 题目How many -digit numbers whose sum of digit(s) is/ are or multiples of is/are there? 有多少个三位数的数位和是或的倍数? 相关知识点: 试题来源: 解析 . .反馈 收藏
How many four-digit numbers can be made without repeating digits?How many five-digit numbers can be made using the digits 0, 1, 2, 3, 4, 5, and 6 without repeating digits? 2【题目】Answer the following questions:How many three-digit numbers can be made using the digits 0, 1, 2, ...
【题目】英文数学问题!Howmanyfour-digitnumberscontainingnozeroshavethepropertythatwheneveranyoneofits fourdigitsisremoved,theresultingthree-digitnumberisdivisibleby3?谢谢 相关知识点: 试题来源: 解析 【解析】One thing to remember is that a number is divisible by 3 if the sum of all its digits is ...
【题目】How many differen tthree-digit numbers can b e formed with th e digits 1 ,2 and 3 if each d igi tcan only b e used onc e in each number?How many differen tthree-digit numbers can b e formed with th e digits 1 ,3 ,and 6if each di gi tcan only b e used onc e...
How many different 3-digit numbers can you make using the numbers 1,4,5,8 only (each number can only be used once)? (2) How many different 3-digit numbers can you make using the numbers 1,4,5,8 only (each number can be used more than once)?
【题目】【题目】(1) How many differen tthree-digi tnumbers can be formed with the digit s1 , 2and 3if each digit【题目】(1) How many differen tthree-digi tnumbers can be formed with the digit s1 , 2and 3if each digit 相关知识点: ...
有一个整数,它的数字和为1:10.有4个整数,它们的数字和为4:13、22、31和40.有9个整数,其数字和为9:18、27、36、45、54、63、72、81和90.有3个整数,它们的数字和为16:79、88和97.两位数的和不能等于25或任何更大的平方,因为两位数的最大和是9+9=18.因此,答案是1+4+9+3=17.故选C....
Answer the following questions:How many three-digit numbers can be made using the digits 0, 1, 2, 3, 4, and 5? How many four-digit numbers can be made without repeating digits?How many five-digit numbers can be made using the digits 0, 1, 2, 3, 4, 5, and 6 without repeating ...
How many different three-digit numbers can be formed with the digits 3, s, and 7 without repeating digits? 4【题目】How many different three-digit numbers can be formed with the digits 1 and 2?How many different three-digit numbers can be formed with the digits 3, 5, and 7 without...
34There are 10 two-digit numbers that begin with a 5 . There are 9 two-digit numbers that end with a 5. But since we count 55 twice, there are two-digit numbers that contain a 5 . Similarly there are 18 two-digit numbers that contain a 6 . Now the numbers 56 and 65 contain ...