A book has 10 pages. How many digits are there altogether in the page numbers of the book?digits. 相关知识点: 试题来源: 解析 11. Numbers 1 to 9 have 1 digit each, total 9 digits. Number 10 has 2 digits. 9+2=11. 反馈 收藏 ...
根据文中的句子The fourth to the seventh digits tell you which area the number is registered in.可知,在这11位数字中,第4位到第7位数字能告诉你手机号码的注册地,故答案选C。 【2】词义猜测题。根据句意And the last four digits are random. You may get the last numbers that you like or not....
Do you know how many numbers there are in your cellphone number? Your cellphone number has 11 digits(数字). You may sometimes find it hard to remember your number. China has the longest cellphone numbers in the world, longer than the US or Australia. Why is that?
结果1 题目A book has 10 pages. How many digits are there altogether in the page numbers of the book? digits 相关知识点: 试题来源: 解析 11 Numbers 1 to 9 have 1 digit each, total 9 digits. Number 10 has 2 digits. 9+2=11
解析 240. Page 1 to Page 9 : 9 digits, Page 10 to Page 99 : 180 digits, Page 100 to Page 116 : 116−100=16, 16+1=17 page numbers, 17×3=51 digits, 9+180+51=240, 240 digits are used for printing the page numbers of the book.. ...
2)Phone numbers consist of 8 digits .The first must be 9.The second digit can be a 3,4,5or 8.There are no restrictions on the remaining digits.How many different telephone numbers are possible3)How many 4-digit numbers can be made from the numbers 1,3,5,7,9and 2 if the numbers...
1How many two-digit numbers have digits whose sum is a perfect square?( ).A.13B.16C.17D.18E.19 2【题目】How many two-digit numbers have digits whose sumis a perfect square?(). A.13 B.16 C.17 D.18 E.19 3【题目】Ho wman ytwo-digi tnumber shav edigit swhos e sum i s...
(Maths Olympiad 《Problems from Page Numbers》 Pr4&5 Question #18)How many digits are there before the '3' in 3 8 3 88 3 888 3 8888 3 88888 ? 答案 5049.相关推荐 1(Maths Olympiad 《Problems from Page Numbers》 Pr4&5 Question #18)How many digits are there before the '3' in 3...
结果1 题目 How many 2−digit numbers are there such that the sum of the digits is divisible by 3 and no repeated digits are used?有多少个数位之和是3的倍数且没有重复数位的两位数? 相关知识点: 试题来源: 解析 27. 反馈 收藏 ...
How many UK mobile numbers can there be? Thetotal number of digits is ten but, in a very few areas, the total may be nine digits (after the initial zero). The "area code" is also referred to as an "STD (code)" (subscriber trunk dialling) or a "dialling code" in the UK. The...