Answers

2016-06-22T17:14:43+08:00
So many numbers you can make using all of that digits

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2016-06-22T17:15:22+08:00
531, 315, 135, 513, 351, 153
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3. How many numbers between 222 and 444 begin or end with 3?
Even numbers are those that are divisible by 2 so, 012, 210, 120, 102,
Let's count how many. 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21,31,41,51,61,71,81,91,. You can count it by yourself :) Give it a try
thank you
3. 223, 233,243, 253, 263, 273, 283, 293 so that's 8 numbers. Between 300 and 399, it gives us another 100. 403, 413, 423, 443. That's 5 numbers. Add it all and you get 113 numbers.