The first four digit number is 1,000 So 1000 / 5 = 200 and 1000 /10 = 100
35 and 119.
9000. The first digit can be any one of 1-9 (9 choices). The second digit can be any one of 0-9 (10 choices). The third digit can be any one of 0-9 (10 choices). The fourth digit can be any one of 0-9 (10 choices). So, in all, 9*10*10*10 = 9000
Zero. Any five consecutive natural numbers will contain at least one multiple of 2 and at least one multiple of 5, meaning that the product will be a multiple of 10.
64
The only positive two-digit multiple of 12 and 10 is 60.
Any multiple of 90 from 1080 to 9990.
Just multiply any whole number by 10, and you get a multiple of 10. Note that all multiples of 10 end with the digit zero.If you have one multiple of 10, you can add 10 to get the next one.
Oh, dude, the last digit of any multiple of 10 is always 0. It's like the universe's way of saying, "Hey, I got you, here's a nice round number for ya." So, if you see a number that ends in 0, you can be pretty confident it's a multiple of 10.
-3
18
You may have any number of digits, but your last digit must be ' 9 '.
-8
The first four digit number is 1,000 So 1000 / 5 = 200 and 1000 /10 = 100
35 and 119.
The first squared number that is a multiple of 10 is three digits.
9000. The first digit can be any one of 1-9 (9 choices). The second digit can be any one of 0-9 (10 choices). The third digit can be any one of 0-9 (10 choices). The fourth digit can be any one of 0-9 (10 choices). So, in all, 9*10*10*10 = 9000