Question

Round 3,438 to the nearest thousand

Answer 1

3000.
As my elementary teacher said: 4 or less, go to rest (in this case, 3400 is rounded to 3000) 5 or more then one more (add 1 more to 3000, which would be 4000)

Answer 2

3000 because if the hundredths place is 499 or less you round down but if its 500 or more you round up