She needs to give an explanation on how to regroup numbers and I don't know how to word it! Can anyone help?
2007-02-20 10:09:00 · 5 answers · asked by Hunter 2 in Education & Reference ➔ Homework Help
Back in the day, we used to call regrouping, borrowing... there are several websites that help to explain what it means to borrow/regroup.... check out www.actionmath.com and www.themathpage.com
both are great sites... I had to get a quick "refresher" course myself once I began homeschooling my children, and found the wording to be all different....hope they help.
2007-02-20 10:22:27 · answer #1 · answered by JustJen 5 · 0⤊ 0⤋
Here are a few examples of regrouping...
A. 13+6
B. 31+8
C. 46 - 7
D. 72 + 6
Solution
Regrouping has to do with borrowing when subtracting or carrying over when adding.
In A the 3 and the 6 are added together to give 9 and the result is 19.
In B the 1 and the 8 are added together to give 9 and the result is 39.
In D the 2 and the 6 are added together to give 8 and the result is 78.
In C you cannot subtract 6 - 7 without having to borrow a ten from the ten's digit. So the 4 in the ten's place gets regrouped as 30 and 10 (or 3 and 1), and the 30 stays behind in the ten's place (written as 3) and the 10 moves over to the one's digit so that there are 16 in the one's place. Now you can subtract 16 - 7 and get 9 in the one's place for a result of 39.
C is the problem which needs regrouping.
2007-02-20 18:27:09 · answer #2 · answered by jenniffervaughn 2 · 1⤊ 0⤋
I can tell you that M&M's work wonders with math problems.
Use the M&M's to set up the problem, If she gets it right she gets one M&M. Sure worked great with a little girl I had. Before we knew it she was right up there with the rest of the class. Of course any little candies would work just as well. I also used M&M's to teach colors. Now that was fun to do in a group.
If she likes working on the computer the website I've listed has step by step instructions, in a sort of game format.
2007-02-20 18:18:51 · answer #3 · answered by Silly Girl 5 · 0⤊ 0⤋
I am a retired teacher, we used manipulative like unifix cubes. If you are at home you could use 10 pennnies to make 10, put them in a small container and carry to the top of the tens column or if subtracting, do the opposite. You can email me for more help if you like. Just click on my "picture"
2007-02-20 18:13:36 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Sorry my kids arent here right now...........
2007-02-20 18:13:02 · answer #5 · answered by troble # one? 7 · 1⤊ 0⤋