【题目】(Maths Olympiad 《Problems from Page Numbers》 Pr4&5 Question #19)What is the sum of the first 100 digits in 1 23456789101112131415..? 答案 【解析】365.相关推荐 1【题目】(Maths Olympiad 《Problems from Page Numbers》 Pr4&5 Question #19)What is the sum of the first 100 digits...
What is the sum of all the digits of the page numbers of a 60-page book? 相关知识点: 试题来源: 解析 426. Pages 1 to 9 : 1+2+3+⋯ +9=45, Pages 10 to 19 : 45+1* 10=55, Pages 20 to 29 : 45+2* 10=65, \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ...
What is the sum of the first 30 numbers in the series below? 1, 2, 3, 4, 5, 2, 3, 4, 5, 6, 3, 4, 5, 6, 7, 4, 5, 6, 7, 8, . 相关知识点: 试题来源: 解析 165. 1+2+3+4+5=15, 2+3+4+5+6=20, 3+4+5+6+7=25, 6+7+8+9+10=40, .反馈...
(Maths Olympiad 《Digits, Numbers and Multiples》 Pr& Question #) What is the sum of the smallest and the greatest -digit numbers that can be formed from digits , , , and ? 相关知识点: 试题来源: 解析 . smallest -digit number: greatest -digit number: The sum is .反馈 收藏 ...
(Maths Olympiad 《Value of Ones Digit》 Pr3&4 Question #8)What is the ones digit in each of the following?(1).(2).(3).(4). 答案 (1)2.(2)9.(3)9.(4)5.相关推荐 1(Maths Olympiad 《Value of Ones Digit》 Pr3&4 Question #8)What is the ones digit in each of the following...
(Maths Olympiad 《Digits, Numbers and Multiples》 Pr2&3 Question #10)What is the sum of the smallest and the greatest 4-digit numbers that can be formed from digits 3, 5, 8, and 0? 答案 11588.相关推荐 1(Maths Olympiad 《Digits, Numbers and Multiples》 Pr2&3 Question #10)What is...
1(Maths Olympiad 《Value of Ones Digit》 Pr3&4 Question #8)What is the ones digit in each of the following?(1).(2).(3).(4). 2(Maths Olympiad 《Value of Ones Digit》 Pr3&4 Question #7)What is the ones digit in each of the following?(1).(2).(3).(4).反馈 收藏 ...
(Maths Olympiad 《The story of Gauss》 Pr2&3 Question #16)What is the sum of the first 30 numbers in the series below?1, 2, 3, 4, 5, 2, 3, 4, 5, 6, 3, 4, 5, 6, 7, 4, 5, 6, 7, 8, . 相关知识点: 试题来源: 解析 165.1+2+3+4+5=15,2+3+4+5+6=20,3+...
结果1 题目【题目】(Maths Olympiad 《Looking for a Pattern》 Pr4&5Question #10What are the numbers in the twelfth group in the pattern below?(1,4,8)(2,8,12)( (3,12,16)⋯ 相关知识点: 试题来源: 解析 【解析】52. 反馈 收藏 ...
【题目】(Maths Olympiad 《Mathematics of Time》 Pr56*6Question #4At what time do the minute hand and hour hand of a clock form a right angle between 4 and 5 o'clock? 答案 【解析】 'lok and5 mi, ock and3s min .相关推荐 1【题目】(Maths Olympiad 《Mathematics of Time》 Pr56*6Que...