1 / 7

Subtraction with regrouping ( borrowing )

Subtraction with regrouping ( borrowing ). By: Mrs. Moore. First think of the 3 B’s…. Look at the problem first If the number on the bottom in the ones place is bigger than the top number you MUST borrow Bigger on the Bottom you must Borrow. Let’s look at some examples…. 24

egil
Download Presentation

Subtraction with regrouping ( borrowing )

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Subtraction with regrouping ( borrowing ) By: Mrs. Moore

  2. First think of the 3 B’s… • Look at the problem first • If the number on the bottom in the ones place is bigger than the top number you MUST borrow • Bigger on the • Bottom you must • Borrow

  3. Let’s look at some examples… • 24 • -18 ← bigger on the bottom • So what must you do ? • Borrow from the tens column

  4. Example problem • 24 • -18←( bigger ) • 1214 • - 1 8 • 0 6 ← 14-8 = 6 • In the tens column 1-1 = 0

  5. Here are some more… get out your white boards so we can do them together… • ₃4₁6 • -29 • 1 7 • 25 • -18

  6. You’re doing great! Let’s do some more… • 56 33 86 77 • -28 -17 -19 -49 • 22 71 93 44 • -15 - 68 -27 - 28

  7. Amazing job, keep working hard!!

More Related