Use the numbers 1, 2, 3, 4, 5, 6, 7, 8 to make two four−digit numbers without repeating digits. The largest possible product would be × . 相关知识点: 试题来源: 解析 8531;7642 To make the largest result, when the number of digits is fixed, you should make the digi...
【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 ...
Find the number of three-digit numbers possible if only the digits 0,1,2,3,4and5 may be used,the number must be a multiple of 5,and no digit may be used more than twice in the same number 相关知识点: 试题来源: 解析 一个三位数,只能由0,1,2,3,4,5来组成,它必须是5的倍数,这个...
To solve the problem of finding the number of five-digit numbers formed with the digits 0, 1, 2, 3, 4, and 5 (without repetition) that are divisible by 6, we need to follow these steps:Step 1: Understand the divisibility rules for 6</st
结果1 题目 12. Find the number of 6-digit numbers using the digits 3,4,5,6,7,8 without repetition.How many of these numbers are(a)divisible by 5, (b) not divisible by 5. 相关知识点: 试题来源: 解析 720a) 120 ,b) 600 反馈 收藏 ...
To make the largest result, when the number of digits is fixed, you should make the digit in the hundreds place as large as possible.So, for the these two three−digit, 6, 5 and 4 should be in the tens place, and 1, 2 and 3 should be in the ones place. Given an unchange...
结果1 题目 Use the numbers 1, 2, 3, 4, 5, 6, 7, 8 to make two four−digit numbers without repeating digits. The largest possible product would be × . 相关知识点: 试题来源: 解析 8531;7642 反馈 收藏 ...
解析 A The ones' digits cycle 2,4,8,6,2,4,8,6⋯⋯. The 53rd digit is a 2. 下列数中,哪个数的个位数最小( ). A.253 B. 252 C.251 D.250 个位数是2,4, 8, 6, 2,4, 8,6⋯⋯循环,第53 次的个位是2,所以选 A.. 故选A....
Using the digits 1, 2, 3, 4, 5, and 6: (1) How many four-digit numbers can be formed if digits can be repeated? (2) How many four-digit numbers can be formed without repeating digits? 相关知识点: 试题来源: 解析 (1) 1296. (2) 360.反馈 收藏 ...
结果1 题目 (3) The two-digit numbers, whose digits in the ones place are 4 less than the digits in the tens place, are ( ). (write down all the numbers that satisfy the condition) 40,51,62,73,84,95 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...