Question

Sam tried to subtract 21.3-1.9

Answer 1

You would have to put 21.3 on top and 1.9 under it. then you would have to borrow the number. the answer would be 19.4

Answer 2

You would set up your equation with 21.3 on top and 1.9 on bottom, stacking them so the you can subtract from right to left to get the answer 19.4