Oh, dude, you're asking me to do math now? Alright, well, 1138 rounded to the nearest 100 is 1100. So, like, if you were throwing a party for 1138 people, you'd better make sure you have enough snacks for 1100, or else someone's gonna be hungry.
1138 rounded to the nearest 100 would be 1100. When rounding to the nearest 100, you look at the digit in the tens place (1 in this case) and determine if it is 5 or greater. Since 1 is less than 5, you keep the hundreds place (1) the same and change all other digits to the right to 0.
Oh honey, 1138 rounded to the nearest 100 is 1100. It's not rocket science, just chop off those extra digits and call it a day. You're welcome, darling.