Number Thinking (1)( Week 18 Practice) 1. A prime number is a whole number that can only be divided by itself and one. What is the biggest prime number that is less than 175? 2. The product of two whole numbers is 245 and their quotient is 5. What is the smaller number? 3. Some toys are distributed to children. If each child is given 6 toys, 7 toys are left. If each child is given 7 toys, 5 more toys are needed. How many children are there? 4. A 12-hour digital clock shows time in digits with accuracy to minutes. What is the largest possible product of its non-zero digits? 5. 1, 100, 2, 100, 3, 100, 4, 100, 5, 100, 6, 100, ...
In the sequence above, all even-numbered terms beginning with the 2nd term are 100. The odd-numbered terms are the consecutive positive natural integers. What is the difference between the 100th term and 101st term? |