Question
Consider the numbers in the following boxes:

Using these numbers and the operations addition and subtraction, we can write: $39,800=40,000-800+300+300$
Similarly, write the following numbers by using the numbers in the boxes:
$45,000 ; 5,900 ; 17,500 ; 21,400$

Using these numbers and the operations addition and subtraction, we can write: $39,800=40,000-800+300+300$
Similarly, write the following numbers by using the numbers in the boxes:
$45,000 ; 5,900 ; 17,500 ; 21,400$
