How do you do estimate thousand in math?

Answer 1

if the number is 16,234 then you circle the six then underline the two. since 6 is larger than 5, you would round up. The answer is 17,000. there are three zeros at the end. now if the number is 1,534. you do the same except you circle 1 and underline five. now do the same steps. if the number is 1,245 then this is different. 2 is smaller than 5. so you stay at 1. the answer would be 1,000.