Write a number that has a zero in the tens place draw a quick picture for your number

Think of any whole numbers (positive or negative numbers without decimals or fraction) that the second digit from the back is 0

For example: 

506 ⇒ Here we have 5 hundred and 6 units but 0 tens
4508 ⇒ Here we have 4 thousand, 5 hundred and 8 units but 0 tens
98409 ⇒ Here we have 9 ten-thousand, 8 thousand, 4 hundred and 9 units but 0 tens

It is the top one. the answer is -7. that is smallest