1- Rounding and determining the amount that needs to be borrowed:
Total amount needed = $203. Wen rounded, this will give us $200
Amount Quan has = $37. When rounded, this will give us $40
Now, we will get the amount that he needs to borrow as follows:
amount that he needs to borrow = 200 - 40 = $160
2- Inverse operation checking:
This means that we will work the problem frown bottom to up.
Quin has $40 (rounded) and he borrows $160 (rounded). This means that:
Total amount he has = 40 + 160 = $200 (the rounded amount needed)
Hope this helps :)
