Hey There, Can I Borrow a Zero?
In the stunningly wretched way that only a red-streaked quiz pinned to a note from your child's teacher saying, "Can you go over this with your daughter?" can point out, it occurred to me that subtraction can be sub-categorized into more than just borrowing and non-borrowing problems. In fact, that whole scenario where borrowing from zero digits in the minuend, or borrowing across a zero, is down-right problematic. Witness the erasure strewn red nightmare that is tonight's homework hour.
To better categorize this, I added some new worksheets that introduce borrowing without needing to borrow across zeros. This should provide a gentle introduction to borrowing without introducing the extra mechanics necessary to borrow across multiple place values. Also, I created a set of worksheets that focus especially on borrowing across zero that were designed to drive a nail through tonight's trouble spot.
Keep your fingers crossed for this next unit test for me.
New worksheets at the links below...