百度试题 结果1 题目 15. The number of natural numbers less than 100 000which have 9 as their first digit is E(A)10000 (B)11110(C)10001 (D)9999(E)11111 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The number of natural numbers from 1 to 100 (inclusive) that are divisible by 2 is 100÷2=50. (2) The number of natural numbers from 1 to 100 (inclusive) that are divisible by 3 is 33 as 100÷3=33R1. (3) Numbers divisible by both 2 and 3 must be divisible by 6. There ...
The number of natural numbers less than 7,000 which can be formed by using the digits 0, 1, 3, 7, 9 (repetition of digits allowed) is equal to
To find the number of natural numbers less than or equal to 1000 that are neither divisible by 10, 15, nor 25, we can use the principle of Inclusion-Exclusion.1. Define Sets: - Let \( A \) be the set of numbers divisible by
This chapter discusses various approaches to the most important kind of numbers in all of mathematics, namely, the natural numbers. The inclusion of the number zero as the first one among the natural numbers is in accordance with the usage of most logicians, though many mathematicians do not ...
自然数集的符号是 \(\mathbb{N}\),其英文读法直接对应“自然数”的英文翻译,即 "natural numbers"。由于自然数表示非负整数(或正整数,依具体数学定义可能略有不同),读法为 "the set of natural numbers",其结构与符号 \(\mathbb{N}\) 的定义完全匹配。因此题目描述的读法正确,内容完整,无需舍弃。反馈...
“the number of”和“the numbers of”在含义、语法搭配及使用场景上存在显著差异,需结合具体语境选择。以下从核心区
Usin g the numbers of 19 to form 5 natural numbers, so that the second number is 2 times of the first number, the third number is 3 times of the first number, the fourth number is the four times of the first number, the fifth number 5 times of the first number. (Require: all th...
Find the number of natural numbers which are less than2×108and which can be written by means of the digit 1 and 2. View Solution Find the number of all three digit natural numbers which are divisible by 9. View Solution The number of natural numbers less than 7,000 which can be forme...
natural number n (Mathematics) any of the numbers 0,1,2,3,4,… that can be used to count the members of a set; the non-negative integers Collins English Dictionary –Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 200...